20931318

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{151}}^2$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 49578480

約数和(自身を除く): 28647162

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 151, 153, 302, 306, 453, 459, 906, 918, 1359, 2567, 2718, 4077, 5134, 7701, 8154, 15402, 22801, 23103, 45602, 46206, 68403, 69309, 136806, 138618, 205209, 387617, 410418, 615627, 775234, 1162851, 1231254, 2325702, 3488553, 6977106, 10465659, 20931318]

約数ペア:

[(1, 20931318), (2, 10465659), (3, 6977106), (6, 3488553), (9, 2325702), (17, 1231254), (18, 1162851), (27, 775234), (34, 615627), (51, 410418), (54, 387617), (102, 205209), (151, 138618), (153, 136806), (302, 69309), (306, 68403), (453, 46206), (459, 45602), (906, 23103), (918, 22801), (1359, 15402), (2567, 8154), (2718, 7701), (4077, 5134)]