19227901

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 26134272

約数和(自身を除く): 6906371

約数列:

[1, 7, 11, 17, 37, 77, 119, 187, 259, 397, 407, 629, 1309, 2779, 2849, 4367, 4403, 6749, 6919, 14689, 30569, 47243, 48433, 74239, 102823, 161579, 249713, 519673, 1131053, 1747991, 2746843, 19227901]

約数ペア:

[(1, 19227901), (7, 2746843), (11, 1747991), (17, 1131053), (37, 519673), (77, 249713), (119, 161579), (187, 102823), (259, 74239), (397, 48433), (407, 47243), (629, 30569), (1309, 14689), (2779, 6919), (2849, 6749), (4367, 4403)]