21729070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{787}}^1$

素因数の和:1056

約数の個数: 32

約数和(自身を含む): 42892416

約数和(自身を除く): 21163346

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 251, 502, 787, 1255, 1574, 2510, 2761, 3935, 5522, 7870, 8657, 13805, 17314, 27610, 43285, 86570, 197537, 395074, 987685, 1975370, 2172907, 4345814, 10864535, 21729070]

約数ペア:

[(1, 21729070), (2, 10864535), (5, 4345814), (10, 2172907), (11, 1975370), (22, 987685), (55, 395074), (110, 197537), (251, 86570), (502, 43285), (787, 27610), (1255, 17314), (1574, 13805), (2510, 8657), (2761, 7870), (3935, 5522)]