20123647677

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18789587}}^1$

素因数の和:18789617

約数の個数: 24

約数和(自身を含む): 35174108736

約数和(自身を除く): 15050461059

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 18789587, 56368761, 131527109, 169106283, 319422979, 394581327, 958268937, 1183743981, 2235960853, 2874806811, 6707882559, 20123647677]

約数ペア:

[(1, 20123647677), (3, 6707882559), (7, 2874806811), (9, 2235960853), (17, 1183743981), (21, 958268937), (51, 394581327), (63, 319422979), (119, 169106283), (153, 131527109), (357, 56368761), (1071, 18789587)]