667291989

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1249}}^1$

素因数の和:1394

約数の個数: 64

約数和(自身を含む): 1164800000

約数和(自身を除く): 497508011

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 103, 133, 247, 273, 309, 399, 721, 741, 1249, 1339, 1729, 1957, 2163, 3747, 4017, 5187, 5871, 8743, 9373, 13699, 16237, 23731, 25441, 26229, 28119, 41097, 48711, 71193, 76323, 113659, 128647, 166117, 178087, 308503, 340977, 385941, 498351, 534261, 900529, 925509, 1672411, 2159521, 2444293, 2701587, 5017233, 6478563, 7332879, 11706877, 17110051, 31775809, 35120631, 51330153, 95327427, 222430663, 667291989]

約数ペア:

[(1, 667291989), (3, 222430663), (7, 95327427), (13, 51330153), (19, 35120631), (21, 31775809), (39, 17110051), (57, 11706877), (91, 7332879), (103, 6478563), (133, 5017233), (247, 2701587), (273, 2444293), (309, 2159521), (399, 1672411), (721, 925509), (741, 900529), (1249, 534261), (1339, 498351), (1729, 385941), (1957, 340977), (2163, 308503), (3747, 178087), (4017, 166117), (5187, 128647), (5871, 113659), (8743, 76323), (9373, 71193), (13699, 48711), (16237, 41097), (23731, 28119), (25441, 26229)]