21802424

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 50841600

約数和(自身を除く): 29039176

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 56, 62, 76, 124, 133, 152, 217, 248, 266, 434, 532, 589, 661, 868, 1064, 1178, 1322, 1736, 2356, 2644, 4123, 4627, 4712, 5288, 8246, 9254, 12559, 16492, 18508, 20491, 25118, 32984, 37016, 40982, 50236, 81964, 87913, 100472, 143437, 163928, 175826, 286874, 351652, 389329, 573748, 703304, 778658, 1147496, 1557316, 2725303, 3114632, 5450606, 10901212, 21802424]

約数ペア:

[(1, 21802424), (2, 10901212), (4, 5450606), (7, 3114632), (8, 2725303), (14, 1557316), (19, 1147496), (28, 778658), (31, 703304), (38, 573748), (56, 389329), (62, 351652), (76, 286874), (124, 175826), (133, 163928), (152, 143437), (217, 100472), (248, 87913), (266, 81964), (434, 50236), (532, 40982), (589, 37016), (661, 32984), (868, 25118), (1064, 20491), (1178, 18508), (1322, 16492), (1736, 12559), (2356, 9254), (2644, 8246), (4123, 5288), (4627, 4712)]