20888416

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 43491168

約数和(自身を除く): 22602752

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 101, 184, 202, 281, 368, 404, 562, 736, 808, 1124, 1616, 2248, 2323, 3232, 4496, 4646, 6463, 8992, 9292, 12926, 18584, 25852, 28381, 37168, 51704, 56762, 74336, 103408, 113524, 206816, 227048, 454096, 652763, 908192, 1305526, 2611052, 5222104, 10444208, 20888416]

約数ペア:

[(1, 20888416), (2, 10444208), (4, 5222104), (8, 2611052), (16, 1305526), (23, 908192), (32, 652763), (46, 454096), (92, 227048), (101, 206816), (184, 113524), (202, 103408), (281, 74336), (368, 56762), (404, 51704), (562, 37168), (736, 28381), (808, 25852), (1124, 18584), (1616, 12926), (2248, 9292), (2323, 8992), (3232, 6463), (4496, 4646)]