21472210

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{443}}^1$

素因数の和:618

約数の個数: 32

約数和(自身を含む): 40087872

約数和(自身を除く): 18615662

約数列:

[1, 2, 5, 10, 37, 74, 131, 185, 262, 370, 443, 655, 886, 1310, 2215, 4430, 4847, 9694, 16391, 24235, 32782, 48470, 58033, 81955, 116066, 163910, 290165, 580330, 2147221, 4294442, 10736105, 21472210]

約数ペア:

[(1, 21472210), (2, 10736105), (5, 4294442), (10, 2147221), (37, 580330), (74, 290165), (131, 163910), (185, 116066), (262, 81955), (370, 58033), (443, 48470), (655, 32782), (886, 24235), (1310, 16391), (2215, 9694), (4430, 4847)]