21158500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{3847}}^1$

素因数の和:3877

約数の個数: 48

約数和(自身を含む): 50424192

約数和(自身を除く): 29265692

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 1100, 1375, 2750, 3847, 5500, 7694, 15388, 19235, 38470, 42317, 76940, 84634, 96175, 169268, 192350, 211585, 384700, 423170, 480875, 846340, 961750, 1057925, 1923500, 2115850, 4231700, 5289625, 10579250, 21158500]

約数ペア:

[(1, 21158500), (2, 10579250), (4, 5289625), (5, 4231700), (10, 2115850), (11, 1923500), (20, 1057925), (22, 961750), (25, 846340), (44, 480875), (50, 423170), (55, 384700), (100, 211585), (110, 192350), (125, 169268), (220, 96175), (250, 84634), (275, 76940), (500, 42317), (550, 38470), (1100, 19235), (1375, 15388), (2750, 7694), (3847, 5500)]