21532875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:669

約数の個数: 64

約数和(自身を含む): 44169216

約数和(自身を除く): 22636341

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 125, 175, 195, 273, 325, 375, 455, 525, 631, 875, 975, 1365, 1625, 1893, 2275, 2625, 3155, 4417, 4875, 6825, 8203, 9465, 11375, 13251, 15775, 22085, 24609, 34125, 41015, 47325, 57421, 66255, 78875, 110425, 123045, 172263, 205075, 236625, 287105, 331275, 552125, 615225, 861315, 1025375, 1435525, 1656375, 3076125, 4306575, 7177625, 21532875]

約数ペア:

[(1, 21532875), (3, 7177625), (5, 4306575), (7, 3076125), (13, 1656375), (15, 1435525), (21, 1025375), (25, 861315), (35, 615225), (39, 552125), (65, 331275), (75, 287105), (91, 236625), (105, 205075), (125, 172263), (175, 123045), (195, 110425), (273, 78875), (325, 66255), (375, 57421), (455, 47325), (525, 41015), (631, 34125), (875, 24609), (975, 22085), (1365, 15775), (1625, 13251), (1893, 11375), (2275, 9465), (2625, 8203), (3155, 6825), (4417, 4875)]