19900447196

素因数分解:

$2^2\times 7^1\times {\mathrm{710730257}}^1$

素因数の和:710730268

約数の個数: 12

約数和(自身を含む): 39800894448

約数和(自身を除く): 19900447252

約数列:

[1, 2, 4, 7, 14, 28, 710730257, 1421460514, 2842921028, 4975111799, 9950223598, 19900447196]

約数ペア:

[(1, 19900447196), (2, 9950223598), (4, 4975111799), (7, 2842921028), (14, 1421460514), (28, 710730257)]