21402456

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{52457}}^1$

素因数の和:52483

約数の個数: 32

約数和(自身を含む): 56654640

約数和(自身を除く): 35252184

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 52457, 104914, 157371, 209828, 314742, 419656, 629484, 891769, 1258968, 1783538, 2675307, 3567076, 5350614, 7134152, 10701228, 21402456]

約数ペア:

[(1, 21402456), (2, 10701228), (3, 7134152), (4, 5350614), (6, 3567076), (8, 2675307), (12, 1783538), (17, 1258968), (24, 891769), (34, 629484), (51, 419656), (68, 314742), (102, 209828), (136, 157371), (204, 104914), (408, 52457)]