20707218

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1889}}^1$

素因数の和:1936

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 33724782

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 29, 42, 54, 58, 63, 87, 126, 174, 189, 203, 261, 378, 406, 522, 609, 783, 1218, 1566, 1827, 1889, 3654, 3778, 5481, 5667, 10962, 11334, 13223, 17001, 26446, 34002, 39669, 51003, 54781, 79338, 102006, 109562, 119007, 164343, 238014, 328686, 357021, 383467, 493029, 714042, 766934, 986058, 1150401, 1479087, 2300802, 2958174, 3451203, 6902406, 10353609, 20707218]

約数ペア:

[(1, 20707218), (2, 10353609), (3, 6902406), (6, 3451203), (7, 2958174), (9, 2300802), (14, 1479087), (18, 1150401), (21, 986058), (27, 766934), (29, 714042), (42, 493029), (54, 383467), (58, 357021), (63, 328686), (87, 238014), (126, 164343), (174, 119007), (189, 109562), (203, 102006), (261, 79338), (378, 54781), (406, 51003), (522, 39669), (609, 34002), (783, 26446), (1218, 17001), (1566, 13223), (1827, 11334), (1889, 10962), (3654, 5667), (3778, 5481)]