31381904

素因数分解:

$2^4\times {\mathrm{821}}^1\times {\mathrm{2389}}^1$

素因数の和:3218

約数の個数: 20

約数和(自身を含む): 60901980

約数和(自身を除く): 29520076

約数列:

[1, 2, 4, 8, 16, 821, 1642, 2389, 3284, 4778, 6568, 9556, 13136, 19112, 38224, 1961369, 3922738, 7845476, 15690952, 31381904]

約数ペア:

[(1, 31381904), (2, 15690952), (4, 7845476), (8, 3922738), (16, 1961369), (821, 38224), (1642, 19112), (2389, 13136), (3284, 9556), (4778, 6568)]