20499304

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8513}}^1$

素因数の和:8569

約数の個数: 32

約数和(自身を含む): 44953920

約数和(自身を除く): 24454616

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 8513, 17026, 34052, 59591, 68104, 119182, 238364, 366059, 476728, 732118, 1464236, 2562413, 2928472, 5124826, 10249652, 20499304]

約数ペア:

[(1, 20499304), (2, 10249652), (4, 5124826), (7, 2928472), (8, 2562413), (14, 1464236), (28, 732118), (43, 476728), (56, 366059), (86, 238364), (172, 119182), (301, 68104), (344, 59591), (602, 34052), (1204, 17026), (2408, 8513)]