21203164

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1777}}^1$

素因数の和:1957

約数の個数: 24

約数和(自身を含む): 39329360

約数和(自身を除く): 18126196

約数列:

[1, 2, 4, 19, 38, 76, 157, 314, 628, 1777, 2983, 3554, 5966, 7108, 11932, 33763, 67526, 135052, 278989, 557978, 1115956, 5300791, 10601582, 21203164]

約数ペア:

[(1, 21203164), (2, 10601582), (4, 5300791), (19, 1115956), (38, 557978), (76, 278989), (157, 135052), (314, 67526), (628, 33763), (1777, 11932), (2983, 7108), (3554, 5966)]