221537628

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{1249}}^1$

素因数の和:1651

約数の個数: 72

約数和(自身を含む): 605150000

約数和(自身を除く): 383612372

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 379, 468, 758, 1137, 1249, 1516, 2274, 2498, 3411, 3747, 4548, 4927, 4996, 6822, 7494, 9854, 11241, 13644, 14781, 14988, 16237, 19708, 22482, 29562, 32474, 44343, 44964, 48711, 59124, 64948, 88686, 97422, 146133, 177372, 194844, 292266, 473371, 584532, 946742, 1420113, 1893484, 2840226, 4260339, 5680452, 6153823, 8520678, 12307646, 17041356, 18461469, 24615292, 36922938, 55384407, 73845876, 110768814, 221537628]

約数ペア:

[(1, 221537628), (2, 110768814), (3, 73845876), (4, 55384407), (6, 36922938), (9, 24615292), (12, 18461469), (13, 17041356), (18, 12307646), (26, 8520678), (36, 6153823), (39, 5680452), (52, 4260339), (78, 2840226), (117, 1893484), (156, 1420113), (234, 946742), (379, 584532), (468, 473371), (758, 292266), (1137, 194844), (1249, 177372), (1516, 146133), (2274, 97422), (2498, 88686), (3411, 64948), (3747, 59124), (4548, 48711), (4927, 44964), (4996, 44343), (6822, 32474), (7494, 29562), (9854, 22482), (11241, 19708), (13644, 16237), (14781, 14988)]