21173923

素因数分解:

${\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:378

約数の個数: 16

約数和(自身を含む): 23063040

約数和(自身を除く): 1889117

約数列:

[1, 19, 47, 131, 181, 893, 2489, 3439, 6157, 8507, 23711, 116983, 161633, 450509, 1114417, 21173923]

約数ペア:

[(1, 21173923), (19, 1114417), (47, 450509), (131, 161633), (181, 116983), (893, 23711), (2489, 8507), (3439, 6157)]