20356398

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{191}}^2$

素因数の和:421

約数の個数: 36

約数和(自身を含む): 45767904

約数和(自身を除く): 25411506

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 191, 279, 382, 558, 573, 1146, 1719, 3438, 5921, 11842, 17763, 35526, 36481, 53289, 72962, 106578, 109443, 218886, 328329, 656658, 1130911, 2261822, 3392733, 6785466, 10178199, 20356398]

約数ペア:

[(1, 20356398), (2, 10178199), (3, 6785466), (6, 3392733), (9, 2261822), (18, 1130911), (31, 656658), (62, 328329), (93, 218886), (186, 109443), (191, 106578), (279, 72962), (382, 53289), (558, 36481), (573, 35526), (1146, 17763), (1719, 11842), (3438, 5921)]