21870186

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1091}}^1$

素因数の和:1366

約数の個数: 32

約数和(自身を含む): 47331648

約数和(自身を除く): 25461462

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257, 514, 771, 1091, 1542, 2182, 3273, 3341, 6546, 6682, 10023, 14183, 20046, 28366, 42549, 85098, 280387, 560774, 841161, 1682322, 3645031, 7290062, 10935093, 21870186]

約数ペア:

[(1, 21870186), (2, 10935093), (3, 7290062), (6, 3645031), (13, 1682322), (26, 841161), (39, 560774), (78, 280387), (257, 85098), (514, 42549), (771, 28366), (1091, 20046), (1542, 14183), (2182, 10023), (3273, 6682), (3341, 6546)]