21443625

素因数分解:

$3^2\times 5^3\times 7^2\times {\mathrm{389}}^1$

素因数の和:424

約数の個数: 72

約数和(自身を含む): 45082440

約数和(自身を除く): 23638815

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 125, 147, 175, 225, 245, 315, 375, 389, 441, 525, 735, 875, 1125, 1167, 1225, 1575, 1945, 2205, 2625, 2723, 3501, 3675, 5835, 6125, 7875, 8169, 9725, 11025, 13615, 17505, 18375, 19061, 24507, 29175, 40845, 48625, 55125, 57183, 68075, 87525, 95305, 122535, 145875, 171549, 204225, 285915, 340375, 437625, 476525, 612675, 857745, 1021125, 1429575, 2382625, 3063375, 4288725, 7147875, 21443625]

約数ペア:

[(1, 21443625), (3, 7147875), (5, 4288725), (7, 3063375), (9, 2382625), (15, 1429575), (21, 1021125), (25, 857745), (35, 612675), (45, 476525), (49, 437625), (63, 340375), (75, 285915), (105, 204225), (125, 171549), (147, 145875), (175, 122535), (225, 95305), (245, 87525), (315, 68075), (375, 57183), (389, 55125), (441, 48625), (525, 40845), (735, 29175), (875, 24507), (1125, 19061), (1167, 18375), (1225, 17505), (1575, 13615), (1945, 11025), (2205, 9725), (2625, 8169), (2723, 7875), (3501, 6125), (3675, 5835)]