21793730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:663

約数の個数: 48

約数和(自身を含む): 46293120

約数和(自身を除く): 24499390

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 79, 98, 158, 245, 395, 490, 553, 563, 790, 1106, 1126, 2765, 2815, 3871, 3941, 5530, 5630, 7742, 7882, 19355, 19705, 27587, 38710, 39410, 44477, 55174, 88954, 137935, 222385, 275870, 311339, 444770, 622678, 1556695, 2179373, 3113390, 4358746, 10896865, 21793730]

約数ペア:

[(1, 21793730), (2, 10896865), (5, 4358746), (7, 3113390), (10, 2179373), (14, 1556695), (35, 622678), (49, 444770), (70, 311339), (79, 275870), (98, 222385), (158, 137935), (245, 88954), (395, 55174), (490, 44477), (553, 39410), (563, 38710), (790, 27587), (1106, 19705), (1126, 19355), (2765, 7882), (2815, 7742), (3871, 5630), (3941, 5530)]