21329686

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41177}}^1$

素因数の和:41223

約数の個数: 16

約数和(自身を含む): 37554336

約数和(自身を除く): 16224650

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 41177, 82354, 288239, 576478, 1523549, 3047098, 10664843, 21329686]

約数ペア:

[(1, 21329686), (2, 10664843), (7, 3047098), (14, 1523549), (37, 576478), (74, 288239), (259, 82354), (518, 41177)]