81435396

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20627}}^1$

素因数の和:20688

約数の個数: 48

約数和(自身を含む): 221792256

約数和(自身を除く): 140356860

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 84, 94, 141, 188, 282, 329, 564, 658, 987, 1316, 1974, 3948, 20627, 41254, 61881, 82508, 123762, 144389, 247524, 288778, 433167, 577556, 866334, 969469, 1732668, 1938938, 2908407, 3877876, 5816814, 6786283, 11633628, 13572566, 20358849, 27145132, 40717698, 81435396]

約数ペア:

[(1, 81435396), (2, 40717698), (3, 27145132), (4, 20358849), (6, 13572566), (7, 11633628), (12, 6786283), (14, 5816814), (21, 3877876), (28, 2908407), (42, 1938938), (47, 1732668), (84, 969469), (94, 866334), (141, 577556), (188, 433167), (282, 288778), (329, 247524), (564, 144389), (658, 123762), (987, 82508), (1316, 61881), (1974, 41254), (3948, 20627)]