21602744

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{521}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 41718240

約数和(自身を除く): 20115496

約数列:

[1, 2, 4, 8, 71, 73, 142, 146, 284, 292, 521, 568, 584, 1042, 2084, 4168, 5183, 10366, 20732, 36991, 38033, 41464, 73982, 76066, 147964, 152132, 295928, 304264, 2700343, 5400686, 10801372, 21602744]

約数ペア:

[(1, 21602744), (2, 10801372), (4, 5400686), (8, 2700343), (71, 304264), (73, 295928), (142, 152132), (146, 147964), (284, 76066), (292, 73982), (521, 41464), (568, 38033), (584, 36991), (1042, 20732), (2084, 10366), (4168, 5183)]