21079875

素因数分解:

$3^1\times 5^3\times {\mathrm{67}}^1\times {\mathrm{839}}^1$

素因数の和:924

約数の個数: 32

約数和(自身を含む): 35642880

約数和(自身を除く): 14563005

約数列:

[1, 3, 5, 15, 25, 67, 75, 125, 201, 335, 375, 839, 1005, 1675, 2517, 4195, 5025, 8375, 12585, 20975, 25125, 56213, 62925, 104875, 168639, 281065, 314625, 843195, 1405325, 4215975, 7026625, 21079875]

約数ペア:

[(1, 21079875), (3, 7026625), (5, 4215975), (15, 1405325), (25, 843195), (67, 314625), (75, 281065), (125, 168639), (201, 104875), (335, 62925), (375, 56213), (839, 25125), (1005, 20975), (1675, 12585), (2517, 8375), (4195, 5025)]