21697320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{180811}}^1$

素因数の和:180825

約数の個数: 32

約数和(自身を含む): 65092320

約数和(自身を除く): 43395000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 180811, 361622, 542433, 723244, 904055, 1084866, 1446488, 1808110, 2169732, 2712165, 3616220, 4339464, 5424330, 7232440, 10848660, 21697320]

約数ペア:

[(1, 21697320), (2, 10848660), (3, 7232440), (4, 5424330), (5, 4339464), (6, 3616220), (8, 2712165), (10, 2169732), (12, 1808110), (15, 1446488), (20, 1084866), (24, 904055), (30, 723244), (40, 542433), (60, 361622), (120, 180811)]