19844890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{521}}^1$

素因数の和:834

約数の個数: 32

約数和(自身を含む): 38673936

約数和(自身を除く): 18829046

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 293, 521, 586, 1042, 1465, 2605, 2930, 3809, 5210, 6773, 7618, 13546, 19045, 33865, 38090, 67730, 152653, 305306, 763265, 1526530, 1984489, 3968978, 9922445, 19844890]

約数ペア:

[(1, 19844890), (2, 9922445), (5, 3968978), (10, 1984489), (13, 1526530), (26, 763265), (65, 305306), (130, 152653), (293, 67730), (521, 38090), (586, 33865), (1042, 19045), (1465, 13546), (2605, 7618), (2930, 6773), (3809, 5210)]