21897039

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{461}}^1$

素因数の和:758

約数の個数: 16

約数和(自身を含む): 29804544

約数和(自身を除く): 7907505

約数列:

[1, 3, 71, 213, 223, 461, 669, 1383, 15833, 32731, 47499, 98193, 102803, 308409, 7299013, 21897039]

約数ペア:

[(1, 21897039), (3, 7299013), (71, 308409), (213, 102803), (223, 98193), (461, 47499), (669, 32731), (1383, 15833)]