21680582

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{6121}}^1$

素因数の和:6164

約数の個数: 32

約数和(自身を含む): 42315264

約数和(自身を除く): 20634682

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 154, 161, 253, 322, 506, 1771, 3542, 6121, 12242, 42847, 67331, 85694, 134662, 140783, 281566, 471317, 942634, 985481, 1548613, 1970962, 3097226, 10840291, 21680582]

約数ペア:

[(1, 21680582), (2, 10840291), (7, 3097226), (11, 1970962), (14, 1548613), (22, 985481), (23, 942634), (46, 471317), (77, 281566), (154, 140783), (161, 134662), (253, 85694), (322, 67331), (506, 42847), (1771, 12242), (3542, 6121)]