18239340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43427}}^1$

素因数の和:43446

約数の個数: 48

約数和(自身を含む): 58367232

約数和(自身を除く): 40127892

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 43427, 86854, 130281, 173708, 217135, 260562, 303989, 434270, 521124, 607978, 651405, 868540, 911967, 1215956, 1302810, 1519945, 1823934, 2605620, 3039890, 3647868, 4559835, 6079780, 9119670, 18239340]

約数ペア:

[(1, 18239340), (2, 9119670), (3, 6079780), (4, 4559835), (5, 3647868), (6, 3039890), (7, 2605620), (10, 1823934), (12, 1519945), (14, 1302810), (15, 1215956), (20, 911967), (21, 868540), (28, 651405), (30, 607978), (35, 521124), (42, 434270), (60, 303989), (70, 260562), (84, 217135), (105, 173708), (140, 130281), (210, 86854), (420, 43427)]