9721725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^3\times {\mathrm{59}}^1$

素因数の和:111

約数の個数: 48

約数和(自身を含む): 17707200

約数和(自身を除く): 7985475

約数列:

[1, 3, 5, 13, 15, 25, 39, 59, 65, 75, 169, 177, 195, 295, 325, 507, 767, 845, 885, 975, 1475, 2197, 2301, 2535, 3835, 4225, 4425, 6591, 9971, 10985, 11505, 12675, 19175, 29913, 32955, 49855, 54925, 57525, 129623, 149565, 164775, 249275, 388869, 648115, 747825, 1944345, 3240575, 9721725]

約数ペア:

[(1, 9721725), (3, 3240575), (5, 1944345), (13, 747825), (15, 648115), (25, 388869), (39, 249275), (59, 164775), (65, 149565), (75, 129623), (169, 57525), (177, 54925), (195, 49855), (295, 32955), (325, 29913), (507, 19175), (767, 12675), (845, 11505), (885, 10985), (975, 9971), (1475, 6591), (2197, 4425), (2301, 4225), (2535, 3835)]