20518936

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2213}}^1$

素因数の和:2299

約数の個数: 32

約数和(自身を含む): 41180400

約数和(自身を除く): 20661464

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 244, 488, 1159, 2213, 2318, 4426, 4636, 8852, 9272, 17704, 42047, 84094, 134993, 168188, 269986, 336376, 539972, 1079944, 2564867, 5129734, 10259468, 20518936]

約数ペア:

[(1, 20518936), (2, 10259468), (4, 5129734), (8, 2564867), (19, 1079944), (38, 539972), (61, 336376), (76, 269986), (122, 168188), (152, 134993), (244, 84094), (488, 42047), (1159, 17704), (2213, 9272), (2318, 8852), (4426, 4636)]