21673520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2239}}^1$

素因数の和:2274

約数の個数: 60

約数和(自身を含む): 55413120

約数和(自身を除く): 33739600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2239, 2420, 4478, 4840, 8956, 9680, 11195, 17912, 22390, 24629, 35824, 44780, 49258, 89560, 98516, 123145, 179120, 197032, 246290, 270919, 394064, 492580, 541838, 985160, 1083676, 1354595, 1970320, 2167352, 2709190, 4334704, 5418380, 10836760, 21673520]

約数ペア:

[(1, 21673520), (2, 10836760), (4, 5418380), (5, 4334704), (8, 2709190), (10, 2167352), (11, 1970320), (16, 1354595), (20, 1083676), (22, 985160), (40, 541838), (44, 492580), (55, 394064), (80, 270919), (88, 246290), (110, 197032), (121, 179120), (176, 123145), (220, 98516), (242, 89560), (440, 49258), (484, 44780), (605, 35824), (880, 24629), (968, 22390), (1210, 17912), (1936, 11195), (2239, 9680), (2420, 8956), (4478, 4840)]