20751066

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{631}}^1$

素因数の和:681

約数の個数: 80

約数和(自身を含む): 55059840

約数和(自身を除く): 34308774

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 29, 42, 54, 58, 63, 81, 87, 126, 162, 174, 189, 203, 261, 378, 406, 522, 567, 609, 631, 783, 1134, 1218, 1262, 1566, 1827, 1893, 2349, 3654, 3786, 4417, 4698, 5481, 5679, 8834, 10962, 11358, 13251, 16443, 17037, 18299, 26502, 32886, 34074, 36598, 39753, 51111, 54897, 79506, 102222, 109794, 119259, 128093, 164691, 238518, 256186, 329382, 357777, 384279, 494073, 715554, 768558, 988146, 1152837, 1482219, 2305674, 2964438, 3458511, 6917022, 10375533, 20751066]

約数ペア:

[(1, 20751066), (2, 10375533), (3, 6917022), (6, 3458511), (7, 2964438), (9, 2305674), (14, 1482219), (18, 1152837), (21, 988146), (27, 768558), (29, 715554), (42, 494073), (54, 384279), (58, 357777), (63, 329382), (81, 256186), (87, 238518), (126, 164691), (162, 128093), (174, 119259), (189, 109794), (203, 102222), (261, 79506), (378, 54897), (406, 51111), (522, 39753), (567, 36598), (609, 34074), (631, 32886), (783, 26502), (1134, 18299), (1218, 17037), (1262, 16443), (1566, 13251), (1827, 11358), (1893, 10962), (2349, 8834), (3654, 5679), (3786, 5481), (4417, 4698)]