21528648

素因数分解:

$2^3\times 3^2\times {\mathrm{103}}^1\times {\mathrm{2903}}^1$

素因数の和:3018

約数の個数: 48

約数和(自身を含む): 58893120

約数和(自身を除く): 37364472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 103, 206, 309, 412, 618, 824, 927, 1236, 1854, 2472, 2903, 3708, 5806, 7416, 8709, 11612, 17418, 23224, 26127, 34836, 52254, 69672, 104508, 209016, 299009, 598018, 897027, 1196036, 1794054, 2392072, 2691081, 3588108, 5382162, 7176216, 10764324, 21528648]

約数ペア:

[(1, 21528648), (2, 10764324), (3, 7176216), (4, 5382162), (6, 3588108), (8, 2691081), (9, 2392072), (12, 1794054), (18, 1196036), (24, 897027), (36, 598018), (72, 299009), (103, 209016), (206, 104508), (309, 69672), (412, 52254), (618, 34836), (824, 26127), (927, 23224), (1236, 17418), (1854, 11612), (2472, 8709), (2903, 7416), (3708, 5806)]