21000866836

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{86533}}^1$

素因数の和:86680

約数の個数: 48

約数和(自身を含む): 40298537664

約数和(自身を除く): 19297670828

約数列:

[1, 2, 4, 17, 34, 43, 68, 83, 86, 166, 172, 332, 731, 1411, 1462, 2822, 2924, 3569, 5644, 7138, 14276, 60673, 86533, 121346, 173066, 242692, 346132, 1471061, 2942122, 3720919, 5884244, 7182239, 7441838, 14364478, 14883676, 28728956, 63255623, 122098063, 126511246, 244196126, 253022492, 308836277, 488392252, 617672554, 1235345108, 5250216709, 10500433418, 21000866836]

約数ペア:

[(1, 21000866836), (2, 10500433418), (4, 5250216709), (17, 1235345108), (34, 617672554), (43, 488392252), (68, 308836277), (83, 253022492), (86, 244196126), (166, 126511246), (172, 122098063), (332, 63255623), (731, 28728956), (1411, 14883676), (1462, 14364478), (2822, 7441838), (2924, 7182239), (3569, 5884244), (5644, 3720919), (7138, 2942122), (14276, 1471061), (60673, 346132), (86533, 242692), (121346, 173066)]