21418475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1117}}^1$

素因数の和:1199

約数の個数: 24

約数和(自身を含む): 29112720

約数和(自身を除く): 7694245

約数列:

[1, 5, 13, 25, 59, 65, 295, 325, 767, 1117, 1475, 3835, 5585, 14521, 19175, 27925, 65903, 72605, 329515, 363025, 856739, 1647575, 4283695, 21418475]

約数ペア:

[(1, 21418475), (5, 4283695), (13, 1647575), (25, 856739), (59, 363025), (65, 329515), (295, 72605), (325, 65903), (767, 27925), (1117, 19175), (1475, 14521), (3835, 5585)]