21251166

素因数分解:

$2^1\times 3^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 43400448

約数和(自身を除く): 22149282

約数列:

[1, 2, 3, 6, 103, 137, 206, 251, 274, 309, 411, 502, 618, 753, 822, 1506, 14111, 25853, 28222, 34387, 42333, 51706, 68774, 77559, 84666, 103161, 155118, 206322, 3541861, 7083722, 10625583, 21251166]

約数ペア:

[(1, 21251166), (2, 10625583), (3, 7083722), (6, 3541861), (103, 206322), (137, 155118), (206, 103161), (251, 84666), (274, 77559), (309, 68774), (411, 51706), (502, 42333), (618, 34387), (753, 28222), (822, 25853), (1506, 14111)]