21330010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3491}}^1$

素因数の和:3558

約数の個数: 32

約数和(自身を含む): 42239232

約数和(自身を除く): 20909222

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 235, 470, 611, 1222, 3055, 3491, 6110, 6982, 17455, 34910, 45383, 90766, 164077, 226915, 328154, 453830, 820385, 1640770, 2133001, 4266002, 10665005, 21330010]

約数ペア:

[(1, 21330010), (2, 10665005), (5, 4266002), (10, 2133001), (13, 1640770), (26, 820385), (47, 453830), (65, 328154), (94, 226915), (130, 164077), (235, 90766), (470, 45383), (611, 34910), (1222, 17455), (3055, 6982), (3491, 6110)]