21126406

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:484

約数の個数: 32

約数和(自身を含む): 37481472

約数和(自身を除く): 16355066

約数列:

[1, 2, 7, 14, 47, 94, 97, 194, 329, 331, 658, 662, 679, 1358, 2317, 4559, 4634, 9118, 15557, 31114, 31913, 32107, 63826, 64214, 108899, 217798, 224749, 449498, 1509029, 3018058, 10563203, 21126406]

約数ペア:

[(1, 21126406), (2, 10563203), (7, 3018058), (14, 1509029), (47, 449498), (94, 224749), (97, 217798), (194, 108899), (329, 64214), (331, 63826), (658, 32107), (662, 31913), (679, 31114), (1358, 15557), (2317, 9118), (4559, 4634)]