19900743

素因数分解:

$3^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:574

約数の個数: 16

約数和(自身を含む): 26966016

約数和(自身を除く): 7065273

約数列:

[1, 3, 151, 197, 223, 453, 591, 669, 29747, 33673, 43931, 89241, 101019, 131793, 6633581, 19900743]

約数ペア:

[(1, 19900743), (3, 6633581), (151, 131793), (197, 101019), (223, 89241), (453, 43931), (591, 33673), (669, 29747)]