21497712770

素因数分解:

$2^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{397}}^1\times {\mathrm{28351}}^1$

素因数の和:28946

約数の個数: 32

約数和(自身を含む): 38997835776

約数和(自身を除く): 17500123006

約数列:

[1, 2, 5, 10, 191, 382, 397, 794, 955, 1910, 1985, 3970, 28351, 56702, 75827, 141755, 151654, 283510, 379135, 758270, 5415041, 10830082, 11255347, 22510694, 27075205, 54150410, 56276735, 112553470, 2149771277, 4299542554, 10748856385, 21497712770]

約数ペア:

[(1, 21497712770), (2, 10748856385), (5, 4299542554), (10, 2149771277), (191, 112553470), (382, 56276735), (397, 54150410), (794, 27075205), (955, 22510694), (1910, 11255347), (1985, 10830082), (3970, 5415041), (28351, 758270), (56702, 379135), (75827, 283510), (141755, 151654)]