21046250

素因数分解:

$2^1\times 5^4\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 40

約数和(自身を含む): 40065300

約数和(自身を除く): 19019050

約数列:

[1, 2, 5, 10, 25, 50, 113, 125, 149, 226, 250, 298, 565, 625, 745, 1130, 1250, 1490, 2825, 3725, 5650, 7450, 14125, 16837, 18625, 28250, 33674, 37250, 70625, 84185, 93125, 141250, 168370, 186250, 420925, 841850, 2104625, 4209250, 10523125, 21046250]

約数ペア:

[(1, 21046250), (2, 10523125), (5, 4209250), (10, 2104625), (25, 841850), (50, 420925), (113, 186250), (125, 168370), (149, 141250), (226, 93125), (250, 84185), (298, 70625), (565, 37250), (625, 33674), (745, 28250), (1130, 18625), (1250, 16837), (1490, 14125), (2825, 7450), (3725, 5650)]