81976131

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:473

約数の個数: 40

約数和(自身を含む): 127473984

約数和(自身を除く): 45497853

約数列:

[1, 3, 9, 27, 47, 61, 81, 141, 183, 353, 423, 549, 1059, 1269, 1647, 2867, 3177, 3807, 4941, 8601, 9531, 16591, 21533, 25803, 28593, 49773, 64599, 77409, 149319, 193797, 232227, 447957, 581391, 1012051, 1343871, 1744173, 3036153, 9108459, 27325377, 81976131]

約数ペア:

[(1, 81976131), (3, 27325377), (9, 9108459), (27, 3036153), (47, 1744173), (61, 1343871), (81, 1012051), (141, 581391), (183, 447957), (353, 232227), (423, 193797), (549, 149319), (1059, 77409), (1269, 64599), (1647, 49773), (2867, 28593), (3177, 25803), (3807, 21533), (4941, 16591), (8601, 9531)]