21243558

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3803}}^1$

素因数の和:3841

約数の個数: 48

約数和(自身を含む): 52038720

約数和(自身を除く): 30795162

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 49, 57, 98, 114, 133, 147, 266, 294, 399, 798, 931, 1862, 2793, 3803, 5586, 7606, 11409, 22818, 26621, 53242, 72257, 79863, 144514, 159726, 186347, 216771, 372694, 433542, 505799, 559041, 1011598, 1118082, 1517397, 3034794, 3540593, 7081186, 10621779, 21243558]

約数ペア:

[(1, 21243558), (2, 10621779), (3, 7081186), (6, 3540593), (7, 3034794), (14, 1517397), (19, 1118082), (21, 1011598), (38, 559041), (42, 505799), (49, 433542), (57, 372694), (98, 216771), (114, 186347), (133, 159726), (147, 144514), (266, 79863), (294, 72257), (399, 53242), (798, 26621), (931, 22818), (1862, 11409), (2793, 7606), (3803, 5586)]