20856724

素因数分解:

$2^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4933}}^1$

素因数の和:5095

約数の個数: 24

約数和(自身を含む): 41998208

約数和(自身を除く): 21141484

約数列:

[1, 2, 4, 7, 14, 28, 151, 302, 604, 1057, 2114, 4228, 4933, 9866, 19732, 34531, 69062, 138124, 744883, 1489766, 2979532, 5214181, 10428362, 20856724]

約数ペア:

[(1, 20856724), (2, 10428362), (4, 5214181), (7, 2979532), (14, 1489766), (28, 744883), (151, 138124), (302, 69062), (604, 34531), (1057, 19732), (2114, 9866), (4228, 4933)]