21291219080

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{9021703}}^1$

素因数の和:9021773

約数の個数: 32

約数和(自身を含む): 48717201600

約数和(自身を除く): 27425982520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 9021703, 18043406, 36086812, 45108515, 72173624, 90217030, 180434060, 360868120, 532280477, 1064560954, 2129121908, 2661402385, 4258243816, 5322804770, 10645609540, 21291219080]

約数ペア:

[(1, 21291219080), (2, 10645609540), (4, 5322804770), (5, 4258243816), (8, 2661402385), (10, 2129121908), (20, 1064560954), (40, 532280477), (59, 360868120), (118, 180434060), (236, 90217030), (295, 72173624), (472, 45108515), (590, 36086812), (1180, 18043406), (2360, 9021703)]