20879872

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{3137}}^1$

素因数の和:3168

約数の個数: 40

約数和(自身を含む): 44942436

約数和(自身を除く): 24062564

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3137, 3328, 6274, 6656, 12548, 25096, 40781, 50192, 81562, 100384, 163124, 200768, 326248, 401536, 652496, 803072, 1304992, 1606144, 2609984, 5219968, 10439936, 20879872]

約数ペア:

[(1, 20879872), (2, 10439936), (4, 5219968), (8, 2609984), (13, 1606144), (16, 1304992), (26, 803072), (32, 652496), (52, 401536), (64, 326248), (104, 200768), (128, 163124), (208, 100384), (256, 81562), (416, 50192), (512, 40781), (832, 25096), (1664, 12548), (3137, 6656), (3328, 6274)]