21570830

素因数分解:

$2^1\times 5^1\times {\mathrm{823}}^1\times {\mathrm{2621}}^1$

素因数の和:3451

約数の個数: 16

約数和(自身を含む): 38889504

約数和(自身を除く): 17318674

約数列:

[1, 2, 5, 10, 823, 1646, 2621, 4115, 5242, 8230, 13105, 26210, 2157083, 4314166, 10785415, 21570830]

約数ペア:

[(1, 21570830), (2, 10785415), (5, 4314166), (10, 2157083), (823, 26210), (1646, 13105), (2621, 8230), (4115, 5242)]