21993375

素因数分解:

$3^1\times 5^3\times {\mathrm{223}}^1\times {\mathrm{263}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 36900864

約数和(自身を除く): 14907489

約数列:

[1, 3, 5, 15, 25, 75, 125, 223, 263, 375, 669, 789, 1115, 1315, 3345, 3945, 5575, 6575, 16725, 19725, 27875, 32875, 58649, 83625, 98625, 175947, 293245, 879735, 1466225, 4398675, 7331125, 21993375]

約数ペア:

[(1, 21993375), (3, 7331125), (5, 4398675), (15, 1466225), (25, 879735), (75, 293245), (125, 175947), (223, 98625), (263, 83625), (375, 58649), (669, 32875), (789, 27875), (1115, 19725), (1315, 16725), (3345, 6575), (3945, 5575)]