21672120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{577}}^1$

素因数の和:904

約数の個数: 64

約数和(自身を含む): 65337120

約数和(自身を除く): 43665000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 313, 577, 626, 939, 1154, 1252, 1565, 1731, 1878, 2308, 2504, 2885, 3130, 3462, 3756, 4616, 4695, 5770, 6260, 6924, 7512, 8655, 9390, 11540, 12520, 13848, 17310, 18780, 23080, 34620, 37560, 69240, 180601, 361202, 541803, 722404, 903005, 1083606, 1444808, 1806010, 2167212, 2709015, 3612020, 4334424, 5418030, 7224040, 10836060, 21672120]

約数ペア:

[(1, 21672120), (2, 10836060), (3, 7224040), (4, 5418030), (5, 4334424), (6, 3612020), (8, 2709015), (10, 2167212), (12, 1806010), (15, 1444808), (20, 1083606), (24, 903005), (30, 722404), (40, 541803), (60, 361202), (120, 180601), (313, 69240), (577, 37560), (626, 34620), (939, 23080), (1154, 18780), (1252, 17310), (1565, 13848), (1731, 12520), (1878, 11540), (2308, 9390), (2504, 8655), (2885, 7512), (3130, 6924), (3462, 6260), (3756, 5770), (4616, 4695)]