20216944

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{233}}^1$

素因数の和:298

約数の個数: 80

約数和(自身を含む): 47005920

約数和(自身を除く): 26788976

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 29, 34, 44, 58, 68, 88, 116, 136, 176, 187, 232, 233, 272, 319, 374, 464, 466, 493, 638, 748, 932, 986, 1276, 1496, 1864, 1972, 2552, 2563, 2992, 3728, 3944, 3961, 5104, 5126, 5423, 6757, 7888, 7922, 10252, 10846, 13514, 15844, 20504, 21692, 27028, 31688, 41008, 43384, 43571, 54056, 63376, 74327, 86768, 87142, 108112, 114869, 148654, 174284, 229738, 297308, 348568, 459476, 594616, 697136, 918952, 1189232, 1263559, 1837904, 2527118, 5054236, 10108472, 20216944]

約数ペア:

[(1, 20216944), (2, 10108472), (4, 5054236), (8, 2527118), (11, 1837904), (16, 1263559), (17, 1189232), (22, 918952), (29, 697136), (34, 594616), (44, 459476), (58, 348568), (68, 297308), (88, 229738), (116, 174284), (136, 148654), (176, 114869), (187, 108112), (232, 87142), (233, 86768), (272, 74327), (319, 63376), (374, 54056), (464, 43571), (466, 43384), (493, 41008), (638, 31688), (748, 27028), (932, 21692), (986, 20504), (1276, 15844), (1496, 13514), (1864, 10846), (1972, 10252), (2552, 7922), (2563, 7888), (2992, 6757), (3728, 5423), (3944, 5126), (3961, 5104)]