20621406

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{1097}}^1$

素因数の和:1356

約数の個数: 32

約数和(自身を含む): 44640288

約数和(自身を除く): 24018882

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 241, 482, 723, 1097, 1446, 2194, 3133, 3291, 6266, 6582, 9399, 14261, 18798, 28522, 42783, 85566, 264377, 528754, 793131, 1586262, 3436901, 6873802, 10310703, 20621406]

約数ペア:

[(1, 20621406), (2, 10310703), (3, 6873802), (6, 3436901), (13, 1586262), (26, 793131), (39, 528754), (78, 264377), (241, 85566), (482, 42783), (723, 28522), (1097, 18798), (1446, 14261), (2194, 9399), (3133, 6582), (3291, 6266)]