13505919

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1163}}^1$

素因数の和:1259

約数の個数: 24

約数和(自身を含む): 21231360

約数和(自身を除く): 7725441

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1163, 1659, 3489, 3871, 8141, 11613, 24423, 56987, 91877, 170961, 275631, 643139, 1929417, 4501973, 13505919]

約数ペア:

[(1, 13505919), (3, 4501973), (7, 1929417), (21, 643139), (49, 275631), (79, 170961), (147, 91877), (237, 56987), (553, 24423), (1163, 11613), (1659, 8141), (3489, 3871)]