21394330

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{397}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 41006736

約数和(自身を除く): 19612406

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 317, 397, 634, 794, 1585, 1985, 3170, 3970, 5389, 6749, 10778, 13498, 26945, 33745, 53890, 67490, 125849, 251698, 629245, 1258490, 2139433, 4278866, 10697165, 21394330]

約数ペア:

[(1, 21394330), (2, 10697165), (5, 4278866), (10, 2139433), (17, 1258490), (34, 629245), (85, 251698), (170, 125849), (317, 67490), (397, 53890), (634, 33745), (794, 26945), (1585, 13498), (1985, 10778), (3170, 6749), (3970, 5389)]