21085022

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2557}}^1$

素因数の和:2616

約数の個数: 32

約数和(自身を含む): 39290880

約数和(自身を除く): 18205858

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 217, 266, 434, 589, 1178, 2557, 4123, 5114, 8246, 17899, 35798, 48583, 79267, 97166, 158534, 340081, 554869, 680162, 1109738, 1506073, 3012146, 10542511, 21085022]

約数ペア:

[(1, 21085022), (2, 10542511), (7, 3012146), (14, 1506073), (19, 1109738), (31, 680162), (38, 554869), (62, 340081), (133, 158534), (217, 97166), (266, 79267), (434, 48583), (589, 35798), (1178, 17899), (2557, 8246), (4123, 5114)]