21639746

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{15391}}^1$

素因数の和:15449

約数の個数: 16

約数和(自身を含む): 35093760

約数和(自身を除く): 13454014

約数列:

[1, 2, 19, 37, 38, 74, 703, 1406, 15391, 30782, 292429, 569467, 584858, 1138934, 10819873, 21639746]

約数ペア:

[(1, 21639746), (2, 10819873), (19, 1138934), (37, 584858), (38, 569467), (74, 292429), (703, 30782), (1406, 15391)]