81491812

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{16879}}^1$

素因数の和:16971

約数の個数: 24

約数和(自身を含む): 153135360

約数和(自身を除く): 71643548

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 284, 1207, 2414, 4828, 16879, 33758, 67516, 286943, 573886, 1147772, 1198409, 2396818, 4793636, 20372953, 40745906, 81491812]

約数ペア:

[(1, 81491812), (2, 40745906), (4, 20372953), (17, 4793636), (34, 2396818), (68, 1198409), (71, 1147772), (142, 573886), (284, 286943), (1207, 67516), (2414, 33758), (4828, 16879)]