21460185

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12889}}^1$

素因数の和:12937

約数の個数: 24

約数和(自身を含む): 38205960

約数和(自身を除く): 16745775

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12889, 38667, 64445, 116001, 193335, 476893, 580005, 1430679, 2384465, 4292037, 7153395, 21460185]

約数ペア:

[(1, 21460185), (3, 7153395), (5, 4292037), (9, 2384465), (15, 1430679), (37, 580005), (45, 476893), (111, 193335), (185, 116001), (333, 64445), (555, 38667), (1665, 12889)]