20860918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{379}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 35431200

約数和(自身を除く): 14570282

約数列:

[1, 2, 13, 26, 29, 58, 73, 146, 377, 379, 754, 758, 949, 1898, 2117, 4234, 4927, 9854, 10991, 21982, 27521, 27667, 55042, 55334, 142883, 285766, 359671, 719342, 802343, 1604686, 10430459, 20860918]

約数ペア:

[(1, 20860918), (2, 10430459), (13, 1604686), (26, 802343), (29, 719342), (58, 359671), (73, 285766), (146, 142883), (377, 55334), (379, 55042), (754, 27667), (758, 27521), (949, 21982), (1898, 10991), (2117, 9854), (4234, 4927)]