19908994

素因数分解:

$2^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{911}}^1$

素因数の和:1150

約数の個数: 24

約数和(自身を含む): 34933248

約数和(自身を除く): 15024254

約数列:

[1, 2, 7, 14, 49, 98, 223, 446, 911, 1561, 1822, 3122, 6377, 10927, 12754, 21854, 44639, 89278, 203153, 406306, 1422071, 2844142, 9954497, 19908994]

約数ペア:

[(1, 19908994), (2, 9954497), (7, 2844142), (14, 1422071), (49, 406306), (98, 203153), (223, 89278), (446, 44639), (911, 21854), (1561, 12754), (1822, 10927), (3122, 6377)]