21000497018

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{9218831}}^1$

素因数の和:9218917

約数の個数: 16

約数和(自身を含む): 33851551104

約数和(自身を除く): 12851054086

約数列:

[1, 2, 17, 34, 67, 134, 1139, 2278, 9218831, 18437662, 156720127, 313440254, 617661677, 1235323354, 10500248509, 21000497018]

約数ペア:

[(1, 21000497018), (2, 10500248509), (17, 1235323354), (34, 617661677), (67, 313440254), (134, 156720127), (1139, 18437662), (2278, 9218831)]