21230296

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{709}}^1$

素因数の和:931

約数の個数: 32

約数和(自身を含む): 42174000

約数和(自身を除く): 20943704

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 197, 394, 709, 788, 1418, 1576, 2836, 3743, 5672, 7486, 13471, 14972, 26942, 29944, 53884, 107768, 139673, 279346, 558692, 1117384, 2653787, 5307574, 10615148, 21230296]

約数ペア:

[(1, 21230296), (2, 10615148), (4, 5307574), (8, 2653787), (19, 1117384), (38, 558692), (76, 279346), (152, 139673), (197, 107768), (394, 53884), (709, 29944), (788, 26942), (1418, 14972), (1576, 13471), (2836, 7486), (3743, 5672)]