21385008

素因数分解:

$2^4\times 3^2\times {\mathrm{97}}^1\times {\mathrm{1531}}^1$

素因数の和:1642

約数の個数: 60

約数和(自身を含む): 60504808

約数和(自身を除く): 39119800

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 97, 144, 194, 291, 388, 582, 776, 873, 1164, 1531, 1552, 1746, 2328, 3062, 3492, 4593, 4656, 6124, 6984, 9186, 12248, 13779, 13968, 18372, 24496, 27558, 36744, 55116, 73488, 110232, 148507, 220464, 297014, 445521, 594028, 891042, 1188056, 1336563, 1782084, 2376112, 2673126, 3564168, 5346252, 7128336, 10692504, 21385008]

約数ペア:

[(1, 21385008), (2, 10692504), (3, 7128336), (4, 5346252), (6, 3564168), (8, 2673126), (9, 2376112), (12, 1782084), (16, 1336563), (18, 1188056), (24, 891042), (36, 594028), (48, 445521), (72, 297014), (97, 220464), (144, 148507), (194, 110232), (291, 73488), (388, 55116), (582, 36744), (776, 27558), (873, 24496), (1164, 18372), (1531, 13968), (1552, 13779), (1746, 12248), (2328, 9186), (3062, 6984), (3492, 6124), (4593, 4656)]