19368769

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 23901696

約数和(自身を除く): 4532927

約数列:

[1, 7, 31, 41, 49, 217, 287, 311, 1271, 1519, 2009, 2177, 8897, 9641, 12751, 15239, 62279, 67487, 89257, 395281, 472409, 624799, 2766967, 19368769]

約数ペア:

[(1, 19368769), (7, 2766967), (31, 624799), (41, 472409), (49, 395281), (217, 89257), (287, 67487), (311, 62279), (1271, 15239), (1519, 12751), (2009, 9641), (2177, 8897)]