18901479924

素因数分解:

$2^2\times 3^8\times {\mathrm{720221}}^1$

素因数の和:720249

約数の個数: 54

約数和(自身を含む): 49613932914

約数和(自身を除く): 30712452990

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2187, 2916, 4374, 6561, 8748, 13122, 26244, 720221, 1440442, 2160663, 2880884, 4321326, 6481989, 8642652, 12963978, 19445967, 25927956, 38891934, 58337901, 77783868, 116675802, 175013703, 233351604, 350027406, 525041109, 700054812, 1050082218, 1575123327, 2100164436, 3150246654, 4725369981, 6300493308, 9450739962, 18901479924]

約数ペア:

[(1, 18901479924), (2, 9450739962), (3, 6300493308), (4, 4725369981), (6, 3150246654), (9, 2100164436), (12, 1575123327), (18, 1050082218), (27, 700054812), (36, 525041109), (54, 350027406), (81, 233351604), (108, 175013703), (162, 116675802), (243, 77783868), (324, 58337901), (486, 38891934), (729, 25927956), (972, 19445967), (1458, 12963978), (2187, 8642652), (2916, 6481989), (4374, 4321326), (6561, 2880884), (8748, 2160663), (13122, 1440442), (26244, 720221)]