21992625

素因数分解:

$3^2\times 5^3\times {\mathrm{113}}^1\times {\mathrm{173}}^1$

素因数の和:307

約数の個数: 48

約数和(自身を含む): 40227408

約数和(自身を除く): 18234783

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 113, 125, 173, 225, 339, 375, 519, 565, 865, 1017, 1125, 1557, 1695, 2595, 2825, 4325, 5085, 7785, 8475, 12975, 14125, 19549, 21625, 25425, 38925, 42375, 58647, 64875, 97745, 127125, 175941, 194625, 293235, 488725, 879705, 1466175, 2443625, 4398525, 7330875, 21992625]

約数ペア:

[(1, 21992625), (3, 7330875), (5, 4398525), (9, 2443625), (15, 1466175), (25, 879705), (45, 488725), (75, 293235), (113, 194625), (125, 175941), (173, 127125), (225, 97745), (339, 64875), (375, 58647), (519, 42375), (565, 38925), (865, 25425), (1017, 21625), (1125, 19549), (1557, 14125), (1695, 12975), (2595, 8475), (2825, 7785), (4325, 5085)]