20783125972

素因数分解:

$2^2\times 7^3\times {\mathrm{2833}}^1\times {\mathrm{5347}}^1$

素因数の和:8205

約数の個数: 48

約数和(自身を含む): 42437449600

約数和(自身を除く): 21654323628

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 2833, 5347, 5666, 10694, 11332, 19831, 21388, 37429, 39662, 74858, 79324, 138817, 149716, 262003, 277634, 524006, 555268, 971719, 1048012, 1834021, 1943438, 3668042, 3886876, 7336084, 15148051, 30296102, 60592204, 106036357, 212072714, 424145428, 742254499, 1484508998, 2969017996, 5195781493, 10391562986, 20783125972]

約数ペア:

[(1, 20783125972), (2, 10391562986), (4, 5195781493), (7, 2969017996), (14, 1484508998), (28, 742254499), (49, 424145428), (98, 212072714), (196, 106036357), (343, 60592204), (686, 30296102), (1372, 15148051), (2833, 7336084), (5347, 3886876), (5666, 3668042), (10694, 1943438), (11332, 1834021), (19831, 1048012), (21388, 971719), (37429, 555268), (39662, 524006), (74858, 277634), (79324, 262003), (138817, 149716)]