21528

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:48

約数の個数: 48

約数和(自身を含む): 65520

約数和(自身を除く): 43992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 23, 24, 26, 36, 39, 46, 52, 69, 72, 78, 92, 104, 117, 138, 156, 184, 207, 234, 276, 299, 312, 414, 468, 552, 598, 828, 897, 936, 1196, 1656, 1794, 2392, 2691, 3588, 5382, 7176, 10764, 21528]

約数ペア:

[(1, 21528), (2, 10764), (3, 7176), (4, 5382), (6, 3588), (8, 2691), (9, 2392), (12, 1794), (13, 1656), (18, 1196), (23, 936), (24, 897), (26, 828), (36, 598), (39, 552), (46, 468), (52, 414), (69, 312), (72, 299), (78, 276), (92, 234), (104, 207), (117, 184), (138, 156)]