20917746

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1973}}^1$

素因数の和:2031

約数の個数: 48

約数和(自身を含む): 49271040

約数和(自身を除く): 28353294

約数列:

[1, 2, 3, 6, 9, 18, 19, 31, 38, 57, 62, 93, 114, 171, 186, 279, 342, 558, 589, 1178, 1767, 1973, 3534, 3946, 5301, 5919, 10602, 11838, 17757, 35514, 37487, 61163, 74974, 112461, 122326, 183489, 224922, 337383, 366978, 550467, 674766, 1100934, 1162097, 2324194, 3486291, 6972582, 10458873, 20917746]

約数ペア:

[(1, 20917746), (2, 10458873), (3, 6972582), (6, 3486291), (9, 2324194), (18, 1162097), (19, 1100934), (31, 674766), (38, 550467), (57, 366978), (62, 337383), (93, 224922), (114, 183489), (171, 122326), (186, 112461), (279, 74974), (342, 61163), (558, 37487), (589, 35514), (1178, 17757), (1767, 11838), (1973, 10602), (3534, 5919), (3946, 5301)]