20626168

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4099}}^1$

素因数の和:4159

約数の個数: 32

約数和(自身を含む): 42066000

約数和(自身を除く): 21439832

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 2516, 4099, 5032, 8198, 16396, 32792, 69683, 139366, 151663, 278732, 303326, 557464, 606652, 1213304, 2578271, 5156542, 10313084, 20626168]

約数ペア:

[(1, 20626168), (2, 10313084), (4, 5156542), (8, 2578271), (17, 1213304), (34, 606652), (37, 557464), (68, 303326), (74, 278732), (136, 151663), (148, 139366), (296, 69683), (629, 32792), (1258, 16396), (2516, 8198), (4099, 5032)]