21540984

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{487}}^1$

素因数の和:612

約数の個数: 64

約数和(自身を含む): 57388800

約数和(自身を除く): 35847816

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 97, 114, 152, 194, 228, 291, 388, 456, 487, 582, 776, 974, 1164, 1461, 1843, 1948, 2328, 2922, 3686, 3896, 5529, 5844, 7372, 9253, 11058, 11688, 14744, 18506, 22116, 27759, 37012, 44232, 47239, 55518, 74024, 94478, 111036, 141717, 188956, 222072, 283434, 377912, 566868, 897541, 1133736, 1795082, 2692623, 3590164, 5385246, 7180328, 10770492, 21540984]

約数ペア:

[(1, 21540984), (2, 10770492), (3, 7180328), (4, 5385246), (6, 3590164), (8, 2692623), (12, 1795082), (19, 1133736), (24, 897541), (38, 566868), (57, 377912), (76, 283434), (97, 222072), (114, 188956), (152, 141717), (194, 111036), (228, 94478), (291, 74024), (388, 55518), (456, 47239), (487, 44232), (582, 37012), (776, 27759), (974, 22116), (1164, 18506), (1461, 14744), (1843, 11688), (1948, 11058), (2328, 9253), (2922, 7372), (3686, 5844), (3896, 5529)]