31811241

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 54632448

約数和(自身を除く): 22821207

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 103, 147, 191, 231, 309, 539, 573, 721, 1133, 1337, 1617, 2101, 2163, 3399, 4011, 5047, 6303, 7931, 9359, 14707, 15141, 19673, 23793, 28077, 44121, 55517, 59019, 102949, 137711, 166551, 216403, 308847, 413133, 649209, 963977, 1514821, 2891931, 4544463, 10603747, 31811241]

約数ペア:

[(1, 31811241), (3, 10603747), (7, 4544463), (11, 2891931), (21, 1514821), (33, 963977), (49, 649209), (77, 413133), (103, 308847), (147, 216403), (191, 166551), (231, 137711), (309, 102949), (539, 59019), (573, 55517), (721, 44121), (1133, 28077), (1337, 23793), (1617, 19673), (2101, 15141), (2163, 14707), (3399, 9359), (4011, 7931), (5047, 6303)]