21121814

素因数分解:

$2^1\times 7^1\times {\mathrm{757}}^1\times {\mathrm{1993}}^1$

素因数の和:2759

約数の個数: 16

約数和(自身を含む): 36274848

約数和(自身を除く): 15153034

約数列:

[1, 2, 7, 14, 757, 1514, 1993, 3986, 5299, 10598, 13951, 27902, 1508701, 3017402, 10560907, 21121814]

約数ペア:

[(1, 21121814), (2, 10560907), (7, 3017402), (14, 1508701), (757, 27902), (1514, 13951), (1993, 10598), (3986, 5299)]