13481811

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1609}}^1$

素因数の和:1648

約数の個数: 36

約数和(自身を含む): 23860200

約数和(自身を除く): 10378389

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 1609, 2793, 4827, 8379, 11263, 14481, 30571, 33789, 78841, 91713, 101367, 213997, 236523, 275139, 641991, 709569, 1497979, 1925973, 4493937, 13481811]

約数ペア:

[(1, 13481811), (3, 4493937), (7, 1925973), (9, 1497979), (19, 709569), (21, 641991), (49, 275139), (57, 236523), (63, 213997), (133, 101367), (147, 91713), (171, 78841), (399, 33789), (441, 30571), (931, 14481), (1197, 11263), (1609, 8379), (2793, 4827)]