18911342

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1\times {\mathrm{409}}^1$

素因数の和:851

約数の個数: 16

約数和(自身を含む): 28978800

約数和(自身を除く): 10067458

約数列:

[1, 2, 61, 122, 379, 409, 758, 818, 23119, 24949, 46238, 49898, 155011, 310022, 9455671, 18911342]

約数ペア:

[(1, 18911342), (2, 9455671), (61, 310022), (122, 155011), (379, 49898), (409, 46238), (758, 24949), (818, 23119)]