20211884628

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1\times {\mathrm{64879}}^1$

素因数の和:66896

約数の個数: 48

約数和(自身を含む): 50815054080

約数和(自身を除く): 30603169452

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 1997, 3994, 5991, 7988, 11982, 23964, 25961, 51922, 64879, 77883, 103844, 129758, 155766, 194637, 259516, 311532, 389274, 778548, 843427, 1686854, 2530281, 3373708, 5060562, 10121124, 129563363, 259126726, 388690089, 518253452, 777380178, 1554760356, 1684323719, 3368647438, 5052971157, 6737294876, 10105942314, 20211884628]

約数ペア:

[(1, 20211884628), (2, 10105942314), (3, 6737294876), (4, 5052971157), (6, 3368647438), (12, 1684323719), (13, 1554760356), (26, 777380178), (39, 518253452), (52, 388690089), (78, 259126726), (156, 129563363), (1997, 10121124), (3994, 5060562), (5991, 3373708), (7988, 2530281), (11982, 1686854), (23964, 843427), (25961, 778548), (51922, 389274), (64879, 311532), (77883, 259516), (103844, 194637), (129758, 155766)]