21064848

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{883}}^1$

素因数の和:972

約数の個数: 80

約数和(自身を含む): 63138816

約数和(自身を除く): 42073968

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 71, 84, 112, 142, 168, 213, 284, 336, 426, 497, 568, 852, 883, 994, 1136, 1491, 1704, 1766, 1988, 2649, 2982, 3408, 3532, 3976, 5298, 5964, 6181, 7064, 7952, 10596, 11928, 12362, 14128, 18543, 21192, 23856, 24724, 37086, 42384, 49448, 62693, 74172, 98896, 125386, 148344, 188079, 250772, 296688, 376158, 438851, 501544, 752316, 877702, 1003088, 1316553, 1504632, 1755404, 2633106, 3009264, 3510808, 5266212, 7021616, 10532424, 21064848]

約数ペア:

[(1, 21064848), (2, 10532424), (3, 7021616), (4, 5266212), (6, 3510808), (7, 3009264), (8, 2633106), (12, 1755404), (14, 1504632), (16, 1316553), (21, 1003088), (24, 877702), (28, 752316), (42, 501544), (48, 438851), (56, 376158), (71, 296688), (84, 250772), (112, 188079), (142, 148344), (168, 125386), (213, 98896), (284, 74172), (336, 62693), (426, 49448), (497, 42384), (568, 37086), (852, 24724), (883, 23856), (994, 21192), (1136, 18543), (1491, 14128), (1704, 12362), (1766, 11928), (1988, 10596), (2649, 7952), (2982, 7064), (3408, 6181), (3532, 5964), (3976, 5298)]