18821573

素因数分解:

${\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:296

約数の個数: 16

約数和(自身を含む): 20106240

約数和(自身を除く): 1284667

約数列:

[1, 43, 47, 67, 139, 2021, 2881, 3149, 5977, 6533, 9313, 135407, 280919, 400459, 437711, 18821573]

約数ペア:

[(1, 18821573), (43, 437711), (47, 400459), (67, 280919), (139, 135407), (2021, 9313), (2881, 6533), (3149, 5977)]