21194690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10141}}^1$

素因数の和:10178

約数の個数: 32

約数和(自身を含む): 43813440

約数和(自身を除く): 22618750

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10141, 20282, 50705, 101410, 111551, 192679, 223102, 385358, 557755, 963395, 1115510, 1926790, 2119469, 4238938, 10597345, 21194690]

約数ペア:

[(1, 21194690), (2, 10597345), (5, 4238938), (10, 2119469), (11, 1926790), (19, 1115510), (22, 963395), (38, 557755), (55, 385358), (95, 223102), (110, 192679), (190, 111551), (209, 101410), (418, 50705), (1045, 20282), (2090, 10141)]