20818356

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{133451}}^1$

素因数の和:133471

約数の個数: 24

約数和(自身を含む): 52313184

約数和(自身を除く): 31494828

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 133451, 266902, 400353, 533804, 800706, 1601412, 1734863, 3469726, 5204589, 6939452, 10409178, 20818356]

約数ペア:

[(1, 20818356), (2, 10409178), (3, 6939452), (4, 5204589), (6, 3469726), (12, 1734863), (13, 1601412), (26, 800706), (39, 533804), (52, 400353), (78, 266902), (156, 133451)]