21307478

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1\times {\mathrm{617}}^1$

素因数の和:1207

約数の個数: 16

約数和(自身を含む): 33105024

約数和(自身を除く): 11797546

約数列:

[1, 2, 31, 62, 557, 617, 1114, 1234, 17267, 19127, 34534, 38254, 343669, 687338, 10653739, 21307478]

約数ペア:

[(1, 21307478), (2, 10653739), (31, 687338), (62, 343669), (557, 38254), (617, 34534), (1114, 19127), (1234, 17267)]