21803061

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 35493120

約数和(自身を除く): 13690059

約数列:

[1, 3, 7, 17, 21, 51, 119, 157, 357, 389, 471, 1099, 1167, 2669, 2723, 3297, 6613, 8007, 8169, 18683, 19839, 46291, 56049, 61073, 138873, 183219, 427511, 1038241, 1282533, 3114723, 7267687, 21803061]

約数ペア:

[(1, 21803061), (3, 7267687), (7, 3114723), (17, 1282533), (21, 1038241), (51, 427511), (119, 183219), (157, 138873), (357, 61073), (389, 56049), (471, 46291), (1099, 19839), (1167, 18683), (2669, 8169), (2723, 8007), (3297, 6613)]