20498552

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{239}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 18899848

約数列:

[1, 2, 4, 8, 71, 142, 151, 239, 284, 302, 478, 568, 604, 956, 1208, 1912, 10721, 16969, 21442, 33938, 36089, 42884, 67876, 72178, 85768, 135752, 144356, 288712, 2562319, 5124638, 10249276, 20498552]

約数ペア:

[(1, 20498552), (2, 10249276), (4, 5124638), (8, 2562319), (71, 288712), (142, 144356), (151, 135752), (239, 85768), (284, 72178), (302, 67876), (478, 42884), (568, 36089), (604, 33938), (956, 21442), (1208, 16969), (1912, 10721)]