21484125

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^2\times {\mathrm{113}}^1$

素因数の和:160

約数の個数: 72

約数和(自身を含む): 42308136

約数和(自身を除く): 20824011

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 113, 117, 125, 169, 195, 225, 325, 339, 375, 507, 565, 585, 845, 975, 1017, 1125, 1469, 1521, 1625, 1695, 2535, 2825, 2925, 4225, 4407, 4875, 5085, 7345, 7605, 8475, 12675, 13221, 14125, 14625, 19097, 21125, 22035, 25425, 36725, 38025, 42375, 57291, 63375, 66105, 95485, 110175, 127125, 171873, 183625, 190125, 286455, 330525, 477425, 550875, 859365, 1432275, 1652625, 2387125, 4296825, 7161375, 21484125]

約数ペア:

[(1, 21484125), (3, 7161375), (5, 4296825), (9, 2387125), (13, 1652625), (15, 1432275), (25, 859365), (39, 550875), (45, 477425), (65, 330525), (75, 286455), (113, 190125), (117, 183625), (125, 171873), (169, 127125), (195, 110175), (225, 95485), (325, 66105), (339, 63375), (375, 57291), (507, 42375), (565, 38025), (585, 36725), (845, 25425), (975, 22035), (1017, 21125), (1125, 19097), (1469, 14625), (1521, 14125), (1625, 13221), (1695, 12675), (2535, 8475), (2825, 7605), (2925, 7345), (4225, 5085), (4407, 4875)]