20935668

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3121}}^1$

素因数の和:3184

約数の個数: 48

約数和(自身を含む): 53848256

約数和(自身を除く): 32912588

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 172, 258, 516, 559, 1118, 1677, 2236, 3121, 3354, 6242, 6708, 9363, 12484, 18726, 37452, 40573, 81146, 121719, 134203, 162292, 243438, 268406, 402609, 486876, 536812, 805218, 1610436, 1744639, 3489278, 5233917, 6978556, 10467834, 20935668]

約数ペア:

[(1, 20935668), (2, 10467834), (3, 6978556), (4, 5233917), (6, 3489278), (12, 1744639), (13, 1610436), (26, 805218), (39, 536812), (43, 486876), (52, 402609), (78, 268406), (86, 243438), (129, 162292), (156, 134203), (172, 121719), (258, 81146), (516, 40573), (559, 37452), (1118, 18726), (1677, 12484), (2236, 9363), (3121, 6708), (3354, 6242)]