21467750

素因数分解:

$2^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{1997}}^1$

素因数の和:2057

約数の個数: 32

約数和(自身を含む): 41142816

約数和(自身を除く): 19675066

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 125, 215, 250, 430, 1075, 1997, 2150, 3994, 5375, 9985, 10750, 19970, 49925, 85871, 99850, 171742, 249625, 429355, 499250, 858710, 2146775, 4293550, 10733875, 21467750]

約数ペア:

[(1, 21467750), (2, 10733875), (5, 4293550), (10, 2146775), (25, 858710), (43, 499250), (50, 429355), (86, 249625), (125, 171742), (215, 99850), (250, 85871), (430, 49925), (1075, 19970), (1997, 10750), (2150, 9985), (3994, 5375)]