20958444

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2357}}^1$

素因数の和:2399

約数の個数: 72

約数和(自身を含む): 60081840

約数和(自身を除く): 39123396

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2357, 2964, 4446, 4714, 7071, 8892, 9428, 14142, 21213, 28284, 30641, 42426, 44783, 61282, 84852, 89566, 91923, 122564, 134349, 179132, 183846, 268698, 275769, 367692, 403047, 537396, 551538, 582179, 806094, 1103076, 1164358, 1612188, 1746537, 2328716, 3493074, 5239611, 6986148, 10479222, 20958444]

約数ペア:

[(1, 20958444), (2, 10479222), (3, 6986148), (4, 5239611), (6, 3493074), (9, 2328716), (12, 1746537), (13, 1612188), (18, 1164358), (19, 1103076), (26, 806094), (36, 582179), (38, 551538), (39, 537396), (52, 403047), (57, 367692), (76, 275769), (78, 268698), (114, 183846), (117, 179132), (156, 134349), (171, 122564), (228, 91923), (234, 89566), (247, 84852), (342, 61282), (468, 44783), (494, 42426), (684, 30641), (741, 28284), (988, 21213), (1482, 14142), (2223, 9428), (2357, 8892), (2964, 7071), (4446, 4714)]