20921238

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3083}}^1$

素因数の和:3133

約数の個数: 48

約数和(自身を含む): 50515920

約数和(自身を除く): 29594682

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 29, 39, 58, 78, 87, 117, 174, 234, 261, 377, 522, 754, 1131, 2262, 3083, 3393, 6166, 6786, 9249, 18498, 27747, 40079, 55494, 80158, 89407, 120237, 178814, 240474, 268221, 360711, 536442, 721422, 804663, 1162291, 1609326, 2324582, 3486873, 6973746, 10460619, 20921238]

約数ペア:

[(1, 20921238), (2, 10460619), (3, 6973746), (6, 3486873), (9, 2324582), (13, 1609326), (18, 1162291), (26, 804663), (29, 721422), (39, 536442), (58, 360711), (78, 268221), (87, 240474), (117, 178814), (174, 120237), (234, 89407), (261, 80158), (377, 55494), (522, 40079), (754, 27747), (1131, 18498), (2262, 9249), (3083, 6786), (3393, 6166)]