20931808

素因数分解:

$2^5\times {\mathrm{163}}^1\times {\mathrm{4013}}^1$

素因数の和:4186

約数の個数: 24

約数和(自身を含む): 41472648

約数和(自身を除く): 20540840

約数列:

[1, 2, 4, 8, 16, 32, 163, 326, 652, 1304, 2608, 4013, 5216, 8026, 16052, 32104, 64208, 128416, 654119, 1308238, 2616476, 5232952, 10465904, 20931808]

約数ペア:

[(1, 20931808), (2, 10465904), (4, 5232952), (8, 2616476), (16, 1308238), (32, 654119), (163, 128416), (326, 64208), (652, 32104), (1304, 16052), (2608, 8026), (4013, 5216)]