18636212

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{389}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 39312000

約数和(自身を除く): 20675788

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 59, 116, 118, 203, 236, 389, 406, 413, 778, 812, 826, 1556, 1652, 1711, 2723, 3422, 5446, 6844, 10892, 11281, 11977, 22562, 22951, 23954, 45124, 45902, 47908, 78967, 91804, 157934, 160657, 315868, 321314, 642628, 665579, 1331158, 2662316, 4659053, 9318106, 18636212]

約数ペア:

[(1, 18636212), (2, 9318106), (4, 4659053), (7, 2662316), (14, 1331158), (28, 665579), (29, 642628), (58, 321314), (59, 315868), (116, 160657), (118, 157934), (203, 91804), (236, 78967), (389, 47908), (406, 45902), (413, 45124), (778, 23954), (812, 22951), (826, 22562), (1556, 11977), (1652, 11281), (1711, 10892), (2723, 6844), (3422, 5446)]