21000339405

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20290183}}^1$

素因数の和:20290217

約数の個数: 24

約数和(自身を含む): 37983224448

約数和(自身を除く): 16982885043

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20290183, 60870549, 101450915, 182611647, 304352745, 466674209, 913058235, 1400022627, 2333371045, 4200067881, 7000113135, 21000339405]

約数ペア:

[(1, 21000339405), (3, 7000113135), (5, 4200067881), (9, 2333371045), (15, 1400022627), (23, 913058235), (45, 466674209), (69, 304352745), (115, 182611647), (207, 101450915), (345, 60870549), (1035, 20290183)]