18918452

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{827}}^1$

素因数の和:900

約数の個数: 48

約数和(自身を含む): 40803840

約数和(自身を除く): 21885388

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 43, 76, 86, 133, 172, 266, 301, 532, 602, 817, 827, 1204, 1634, 1654, 3268, 3308, 5719, 5789, 11438, 11578, 15713, 22876, 23156, 31426, 35561, 62852, 71122, 109991, 142244, 219982, 248927, 439964, 497854, 675659, 995708, 1351318, 2702636, 4729613, 9459226, 18918452]

約数ペア:

[(1, 18918452), (2, 9459226), (4, 4729613), (7, 2702636), (14, 1351318), (19, 995708), (28, 675659), (38, 497854), (43, 439964), (76, 248927), (86, 219982), (133, 142244), (172, 109991), (266, 71122), (301, 62852), (532, 35561), (602, 31426), (817, 23156), (827, 22876), (1204, 15713), (1634, 11578), (1654, 11438), (3268, 5789), (3308, 5719)]