15661827881

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{751}}^1\times {\mathrm{1013}}^1$

素因数の和:1961

約数の個数: 32

約数和(自身を含む): 19105901568

約数和(自身を除く): 3444073687

約数列:

[1, 7, 17, 119, 173, 751, 1013, 1211, 2941, 5257, 7091, 12767, 17221, 20587, 89369, 120547, 129923, 175249, 760763, 909461, 1226743, 2208691, 2979233, 5325341, 12932971, 15460837, 20854631, 90530797, 131611999, 921283993, 2237403983, 15661827881]

約数ペア:

[(1, 15661827881), (7, 2237403983), (17, 921283993), (119, 131611999), (173, 90530797), (751, 20854631), (1013, 15460837), (1211, 12932971), (2941, 5325341), (5257, 2979233), (7091, 2208691), (12767, 1226743), (17221, 909461), (20587, 760763), (89369, 175249), (120547, 129923)]