21345968

素因数分解:

$2^4\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1433}}^1$

素因数の和:1474

約数の個数: 60

約数和(自身を含む): 50677560

約数和(自身を除く): 29331592

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 49, 56, 76, 98, 112, 133, 152, 196, 266, 304, 392, 532, 784, 931, 1064, 1433, 1862, 2128, 2866, 3724, 5732, 7448, 10031, 11464, 14896, 20062, 22928, 27227, 40124, 54454, 70217, 80248, 108908, 140434, 160496, 190589, 217816, 280868, 381178, 435632, 561736, 762356, 1123472, 1334123, 1524712, 2668246, 3049424, 5336492, 10672984, 21345968]

約数ペア:

[(1, 21345968), (2, 10672984), (4, 5336492), (7, 3049424), (8, 2668246), (14, 1524712), (16, 1334123), (19, 1123472), (28, 762356), (38, 561736), (49, 435632), (56, 381178), (76, 280868), (98, 217816), (112, 190589), (133, 160496), (152, 140434), (196, 108908), (266, 80248), (304, 70217), (392, 54454), (532, 40124), (784, 27227), (931, 22928), (1064, 20062), (1433, 14896), (1862, 11464), (2128, 10031), (2866, 7448), (3724, 5732)]