16953125

素因数分解:

$5^7\times 7^1\times {\mathrm{31}}^1$

素因数の和:73

約数の個数: 32

約数和(自身を含む): 24999936

約数和(自身を除く): 8046811

約数列:

[1, 5, 7, 25, 31, 35, 125, 155, 175, 217, 625, 775, 875, 1085, 3125, 3875, 4375, 5425, 15625, 19375, 21875, 27125, 78125, 96875, 109375, 135625, 484375, 546875, 678125, 2421875, 3390625, 16953125]

約数ペア:

[(1, 16953125), (5, 3390625), (7, 2421875), (25, 678125), (31, 546875), (35, 484375), (125, 135625), (155, 109375), (175, 96875), (217, 78125), (625, 27125), (775, 21875), (875, 19375), (1085, 15625), (3125, 5425), (3875, 4375)]