21280750

素因数分解:

$2^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{3701}}^1$

素因数の和:3741

約数の個数: 32

約数和(自身を含む): 41580864

約数和(自身を除く): 20300114

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 125, 230, 250, 575, 1150, 2875, 3701, 5750, 7402, 18505, 37010, 85123, 92525, 170246, 185050, 425615, 462625, 851230, 925250, 2128075, 4256150, 10640375, 21280750]

約数ペア:

[(1, 21280750), (2, 10640375), (5, 4256150), (10, 2128075), (23, 925250), (25, 851230), (46, 462625), (50, 425615), (115, 185050), (125, 170246), (230, 92525), (250, 85123), (575, 37010), (1150, 18505), (2875, 7402), (3701, 5750)]