18821478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{1063}}^1$

素因数の和:1308

約数の個数: 32

約数和(自身を含む): 40755456

約数和(自身を除く): 21933978

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 227, 454, 681, 1063, 1362, 2126, 2951, 3189, 5902, 6378, 8853, 13819, 17706, 27638, 41457, 82914, 241301, 482602, 723903, 1447806, 3136913, 6273826, 9410739, 18821478]

約数ペア:

[(1, 18821478), (2, 9410739), (3, 6273826), (6, 3136913), (13, 1447806), (26, 723903), (39, 482602), (78, 241301), (227, 82914), (454, 41457), (681, 27638), (1063, 17706), (1362, 13819), (2126, 8853), (2951, 6378), (3189, 5902)]