20545408

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12347}}^1$

素因数の和:12374

約数の個数: 32

約数和(自身を含む): 44082360

約数和(自身を除く): 23536952

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12347, 24694, 49388, 98776, 160511, 197552, 321022, 395104, 642044, 790208, 1284088, 1580416, 2568176, 5136352, 10272704, 20545408]

約数ペア:

[(1, 20545408), (2, 10272704), (4, 5136352), (8, 2568176), (13, 1580416), (16, 1284088), (26, 790208), (32, 642044), (52, 395104), (64, 321022), (104, 197552), (128, 160511), (208, 98776), (416, 49388), (832, 24694), (1664, 12347)]