21787756869

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3257}}^1\times {\mathrm{4523}}^1$

素因数の和:7829

約数の個数: 32

約数和(自身を含む): 31836654720

約数和(自身を除く): 10048897851

約数列:

[1, 3, 17, 29, 51, 87, 493, 1479, 3257, 4523, 9771, 13569, 55369, 76891, 94453, 131167, 166107, 230673, 283359, 393501, 1605701, 2229839, 4817103, 6689517, 14731411, 44194233, 250433987, 427210919, 751301961, 1281632757, 7262585623, 21787756869]

約数ペア:

[(1, 21787756869), (3, 7262585623), (17, 1281632757), (29, 751301961), (51, 427210919), (87, 250433987), (493, 44194233), (1479, 14731411), (3257, 6689517), (4523, 4817103), (9771, 2229839), (13569, 1605701), (55369, 393501), (76891, 283359), (94453, 230673), (131167, 166107)]