18032931

素因数分解:

$3^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:520

約数の個数: 36

約数和(自身を含む): 30671472

約数和(自身を除く): 12638541

約数列:

[1, 3, 7, 9, 21, 49, 63, 103, 147, 309, 397, 441, 721, 927, 1191, 2163, 2779, 3573, 5047, 6489, 8337, 15141, 19453, 25011, 40891, 45423, 58359, 122673, 175077, 286237, 368019, 858711, 2003659, 2576133, 6010977, 18032931]

約数ペア:

[(1, 18032931), (3, 6010977), (7, 2576133), (9, 2003659), (21, 858711), (49, 368019), (63, 286237), (103, 175077), (147, 122673), (309, 58359), (397, 45423), (441, 40891), (721, 25011), (927, 19453), (1191, 15141), (2163, 8337), (2779, 6489), (3573, 5047)]