639348567

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{857}}^1$

素因数の和:968

約数の個数: 64

約数和(自身を含む): 1051674624

約数和(自身を除く): 412326057

約数列:

[1, 3, 11, 13, 33, 37, 39, 47, 111, 141, 143, 407, 429, 481, 517, 611, 857, 1221, 1443, 1551, 1739, 1833, 2571, 5217, 5291, 6721, 9427, 11141, 15873, 19129, 20163, 22607, 28281, 31709, 33423, 40279, 57387, 67821, 95127, 120837, 122551, 248677, 348799, 367653, 412217, 443069, 523627, 746031, 1046397, 1236651, 1329207, 1490323, 1570881, 4470969, 4534387, 5759897, 13603161, 16393553, 17279691, 19374199, 49180659, 58122597, 213116189, 639348567]

約数ペア:

[(1, 639348567), (3, 213116189), (11, 58122597), (13, 49180659), (33, 19374199), (37, 17279691), (39, 16393553), (47, 13603161), (111, 5759897), (141, 4534387), (143, 4470969), (407, 1570881), (429, 1490323), (481, 1329207), (517, 1236651), (611, 1046397), (857, 746031), (1221, 523627), (1443, 443069), (1551, 412217), (1739, 367653), (1833, 348799), (2571, 248677), (5217, 122551), (5291, 120837), (6721, 95127), (9427, 67821), (11141, 57387), (15873, 40279), (19129, 33423), (20163, 31709), (22607, 28281)]