19920956

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{521}}^1$

素因数の和:626

約数の個数: 36

約数和(自身を含む): 38878560

約数和(自身を除く): 18957604

約数列:

[1, 2, 4, 11, 22, 44, 79, 121, 158, 242, 316, 484, 521, 869, 1042, 1738, 2084, 3476, 5731, 9559, 11462, 19118, 22924, 38236, 41159, 63041, 82318, 126082, 164636, 252164, 452749, 905498, 1810996, 4980239, 9960478, 19920956]

約数ペア:

[(1, 19920956), (2, 9960478), (4, 4980239), (11, 1810996), (22, 905498), (44, 452749), (79, 252164), (121, 164636), (158, 126082), (242, 82318), (316, 63041), (484, 41159), (521, 38236), (869, 22924), (1042, 19118), (1738, 11462), (2084, 9559), (3476, 5731)]