81841858

素因数分解:

$2^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{2251}}^1$

素因数の和:2327

約数の個数: 32

約数和(自身を含む): 145929600

約数和(自身を除く): 64087742

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 343, 371, 686, 742, 2251, 2597, 4502, 5194, 15757, 18179, 31514, 36358, 110299, 119303, 220598, 238606, 772093, 835121, 1544186, 1670242, 5845847, 11691694, 40920929, 81841858]

約数ペア:

[(1, 81841858), (2, 40920929), (7, 11691694), (14, 5845847), (49, 1670242), (53, 1544186), (98, 835121), (106, 772093), (343, 238606), (371, 220598), (686, 119303), (742, 110299), (2251, 36358), (2597, 31514), (4502, 18179), (5194, 15757)]