21323390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1301}}^1$

素因数の和:1468

約数の個数: 32

約数和(自身を含む): 42184800

約数和(自身を除く): 20861410

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 149, 298, 745, 1301, 1490, 1639, 2602, 3278, 6505, 8195, 13010, 14311, 16390, 28622, 71555, 143110, 193849, 387698, 969245, 1938490, 2132339, 4264678, 10661695, 21323390]

約数ペア:

[(1, 21323390), (2, 10661695), (5, 4264678), (10, 2132339), (11, 1938490), (22, 969245), (55, 387698), (110, 193849), (149, 143110), (298, 71555), (745, 28622), (1301, 16390), (1490, 14311), (1639, 13010), (2602, 8195), (3278, 6505)]