21166220

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28603}}^1$

素因数の和:28649

約数の個数: 24

約数和(自身を含む): 45651984

約数和(自身を除く): 24485764

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28603, 57206, 114412, 143015, 286030, 572060, 1058311, 2116622, 4233244, 5291555, 10583110, 21166220]

約数ペア:

[(1, 21166220), (2, 10583110), (4, 5291555), (5, 4233244), (10, 2116622), (20, 1058311), (37, 572060), (74, 286030), (148, 143015), (185, 114412), (370, 57206), (740, 28603)]