21557256

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{797}}^1$

素因数の和:843

約数の個数: 96

約数和(自身を含む): 65499840

約数和(自身を除く): 43942584

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 42, 46, 49, 56, 69, 84, 92, 98, 138, 147, 161, 168, 184, 196, 276, 294, 322, 392, 483, 552, 588, 644, 797, 966, 1127, 1176, 1288, 1594, 1932, 2254, 2391, 3188, 3381, 3864, 4508, 4782, 5579, 6376, 6762, 9016, 9564, 11158, 13524, 16737, 18331, 19128, 22316, 27048, 33474, 36662, 39053, 44632, 54993, 66948, 73324, 78106, 109986, 117159, 128317, 133896, 146648, 156212, 219972, 234318, 256634, 312424, 384951, 439944, 468636, 513268, 769902, 898219, 937272, 1026536, 1539804, 1796438, 2694657, 3079608, 3592876, 5389314, 7185752, 10778628, 21557256]

約数ペア:

[(1, 21557256), (2, 10778628), (3, 7185752), (4, 5389314), (6, 3592876), (7, 3079608), (8, 2694657), (12, 1796438), (14, 1539804), (21, 1026536), (23, 937272), (24, 898219), (28, 769902), (42, 513268), (46, 468636), (49, 439944), (56, 384951), (69, 312424), (84, 256634), (92, 234318), (98, 219972), (138, 156212), (147, 146648), (161, 133896), (168, 128317), (184, 117159), (196, 109986), (276, 78106), (294, 73324), (322, 66948), (392, 54993), (483, 44632), (552, 39053), (588, 36662), (644, 33474), (797, 27048), (966, 22316), (1127, 19128), (1176, 18331), (1288, 16737), (1594, 13524), (1932, 11158), (2254, 9564), (2391, 9016), (3188, 6762), (3381, 6376), (3864, 5579), (4508, 4782)]