20880398

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3307}}^1$

素因数の和:3368

約数の個数: 32

約数和(自身を含む): 40013568

約数和(自身を除く): 19133170

約数列:

[1, 2, 7, 11, 14, 22, 41, 77, 82, 154, 287, 451, 574, 902, 3157, 3307, 6314, 6614, 23149, 36377, 46298, 72754, 135587, 254639, 271174, 509278, 949109, 1491457, 1898218, 2982914, 10440199, 20880398]

約数ペア:

[(1, 20880398), (2, 10440199), (7, 2982914), (11, 1898218), (14, 1491457), (22, 949109), (41, 509278), (77, 271174), (82, 254639), (154, 135587), (287, 72754), (451, 46298), (574, 36377), (902, 23149), (3157, 6614), (3307, 6314)]