23121917

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 30750720

約数和(自身を除く): 7628803

約数列:

[1, 7, 13, 19, 43, 91, 133, 247, 301, 311, 559, 817, 1729, 2177, 3913, 4043, 5719, 5909, 10621, 13373, 28301, 41363, 74347, 76817, 93611, 173849, 254087, 537719, 1216943, 1778609, 3303131, 23121917]

約数ペア:

[(1, 23121917), (7, 3303131), (13, 1778609), (19, 1216943), (43, 537719), (91, 254087), (133, 173849), (247, 93611), (301, 76817), (311, 74347), (559, 41363), (817, 28301), (1729, 13373), (2177, 10621), (3913, 5909), (4043, 5719)]