20861170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{953}}^1$

素因数の和:1170

約数の個数: 32

約数和(自身を含む): 41212800

約数和(自身を除く): 20351630

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 953, 995, 1906, 1990, 2189, 4378, 4765, 9530, 10483, 10945, 20966, 21890, 52415, 104830, 189647, 379294, 948235, 1896470, 2086117, 4172234, 10430585, 20861170]

約数ペア:

[(1, 20861170), (2, 10430585), (5, 4172234), (10, 2086117), (11, 1896470), (22, 948235), (55, 379294), (110, 189647), (199, 104830), (398, 52415), (953, 21890), (995, 20966), (1906, 10945), (1990, 10483), (2189, 9530), (4378, 4765)]