21053572972

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{568831}}^1$

素因数の和:569341

約数の個数: 24

約数和(自身を含む): 38862602240

約数和(自身を除く): 17809029268

約数列:

[1, 2, 4, 19, 38, 76, 487, 974, 1948, 9253, 18506, 37012, 568831, 1137662, 2275324, 10807789, 21615578, 43231156, 277020697, 554041394, 1108082788, 5263393243, 10526786486, 21053572972]

約数ペア:

[(1, 21053572972), (2, 10526786486), (4, 5263393243), (19, 1108082788), (38, 554041394), (76, 277020697), (487, 43231156), (974, 21615578), (1948, 10807789), (9253, 2275324), (18506, 1137662), (37012, 568831)]