19404398

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 32598720

約数和(自身を除く): 13194322

約数列:

[1, 2, 13, 26, 41, 82, 109, 167, 218, 334, 533, 1066, 1417, 2171, 2834, 4342, 4469, 6847, 8938, 13694, 18203, 36406, 58097, 89011, 116194, 178022, 236639, 473278, 746323, 1492646, 9702199, 19404398]

約数ペア:

[(1, 19404398), (2, 9702199), (13, 1492646), (26, 746323), (41, 473278), (82, 236639), (109, 178022), (167, 116194), (218, 89011), (334, 58097), (533, 36406), (1066, 18203), (1417, 13694), (2171, 8938), (2834, 6847), (4342, 4469)]