20818668

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1181}}^1$

素因数の和:1314

約数の個数: 48

約数和(自身を含む): 52821216

約数和(自身を除く): 32002548

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 113, 156, 226, 339, 452, 678, 1181, 1356, 1469, 2362, 2938, 3543, 4407, 4724, 5876, 7086, 8814, 14172, 15353, 17628, 30706, 46059, 61412, 92118, 133453, 184236, 266906, 400359, 533812, 800718, 1601436, 1734889, 3469778, 5204667, 6939556, 10409334, 20818668]

約数ペア:

[(1, 20818668), (2, 10409334), (3, 6939556), (4, 5204667), (6, 3469778), (12, 1734889), (13, 1601436), (26, 800718), (39, 533812), (52, 400359), (78, 266906), (113, 184236), (156, 133453), (226, 92118), (339, 61412), (452, 46059), (678, 30706), (1181, 17628), (1356, 15353), (1469, 14172), (2362, 8814), (2938, 7086), (3543, 5876), (4407, 4724)]