20995443441

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{467}}^1$

素因数の和:616

約数の個数: 144

約数和(自身を含む): 38758487040

約数和(自身を除く): 17763043599

約数列:

[1, 3, 7, 9, 19, 21, 23, 57, 63, 69, 71, 133, 161, 171, 207, 213, 399, 437, 467, 483, 497, 529, 639, 1197, 1311, 1349, 1401, 1449, 1491, 1587, 1633, 3059, 3269, 3703, 3933, 4047, 4203, 4473, 4761, 4899, 8873, 9177, 9443, 9807, 10051, 10741, 11109, 11431, 12141, 14697, 26619, 27531, 28329, 29421, 30153, 31027, 32223, 33157, 33327, 34293, 37559, 62111, 70357, 75187, 79857, 84987, 90459, 93081, 96669, 99471, 102879, 112677, 186333, 204079, 211071, 217189, 225561, 232099, 247043, 262913, 279243, 298413, 338031, 558999, 612237, 629983, 633213, 651567, 676683, 696297, 713621, 741129, 762611, 788739, 1428553, 1729301, 1836711, 1889949, 1954701, 2088891, 2140863, 2223387, 2287833, 2366217, 4285659, 4409881, 4693817, 4995347, 5187903, 5338277, 5669847, 6422589, 6863499, 12856977, 13229643, 14081451, 14489609, 14986041, 15563709, 16014831, 17540053, 32856719, 39688929, 42244353, 43468827, 44958123, 48044493, 52620159, 98570157, 101427263, 122780371, 130406481, 157860477, 295710471, 304281789, 333261007, 368341113, 912845367, 999783021, 1105023339, 2332827049, 2999349063, 6998481147, 20995443441]

約数ペア:

[(1, 20995443441), (3, 6998481147), (7, 2999349063), (9, 2332827049), (19, 1105023339), (21, 999783021), (23, 912845367), (57, 368341113), (63, 333261007), (69, 304281789), (71, 295710471), (133, 157860477), (161, 130406481), (171, 122780371), (207, 101427263), (213, 98570157), (399, 52620159), (437, 48044493), (467, 44958123), (483, 43468827), (497, 42244353), (529, 39688929), (639, 32856719), (1197, 17540053), (1311, 16014831), (1349, 15563709), (1401, 14986041), (1449, 14489609), (1491, 14081451), (1587, 13229643), (1633, 12856977), (3059, 6863499), (3269, 6422589), (3703, 5669847), (3933, 5338277), (4047, 5187903), (4203, 4995347), (4473, 4693817), (4761, 4409881), (4899, 4285659), (8873, 2366217), (9177, 2287833), (9443, 2223387), (9807, 2140863), (10051, 2088891), (10741, 1954701), (11109, 1889949), (11431, 1836711), (12141, 1729301), (14697, 1428553), (26619, 788739), (27531, 762611), (28329, 741129), (29421, 713621), (30153, 696297), (31027, 676683), (32223, 651567), (33157, 633213), (33327, 629983), (34293, 612237), (37559, 558999), (62111, 338031), (70357, 298413), (75187, 279243), (79857, 262913), (84987, 247043), (90459, 232099), (93081, 225561), (96669, 217189), (99471, 211071), (102879, 204079), (112677, 186333)]