81947558

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{1327}}^1$

素因数の和:1748

約数の個数: 32

約数和(自身を含む): 153750528

約数和(自身を除く): 71802970

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 401, 802, 1327, 2654, 2807, 4411, 5614, 8822, 9289, 14597, 18578, 29194, 30877, 61754, 102179, 204358, 532127, 1064254, 3724889, 5853397, 7449778, 11706794, 40973779, 81947558]

約数ペア:

[(1, 81947558), (2, 40973779), (7, 11706794), (11, 7449778), (14, 5853397), (22, 3724889), (77, 1064254), (154, 532127), (401, 204358), (802, 102179), (1327, 61754), (2654, 30877), (2807, 29194), (4411, 18578), (5614, 14597), (8822, 9289)]