21350955

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{233}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 14029845

約数列:

[1, 3, 5, 15, 41, 123, 149, 205, 233, 447, 615, 699, 745, 1165, 2235, 3495, 6109, 9553, 18327, 28659, 30545, 34717, 47765, 91635, 104151, 143295, 173585, 520755, 1423397, 4270191, 7116985, 21350955]

約数ペア:

[(1, 21350955), (3, 7116985), (5, 4270191), (15, 1423397), (41, 520755), (123, 173585), (149, 143295), (205, 104151), (233, 91635), (447, 47765), (615, 34717), (699, 30545), (745, 28659), (1165, 18327), (2235, 9553), (3495, 6109)]