21618872

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5227}}^1$

素因数の和:5291

約数の個数: 32

約数和(自身を含む): 45169920

約数和(自身を除く): 23551048

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 188, 376, 517, 1034, 2068, 4136, 5227, 10454, 20908, 41816, 57497, 114994, 229988, 245669, 459976, 491338, 982676, 1965352, 2702359, 5404718, 10809436, 21618872]

約数ペア:

[(1, 21618872), (2, 10809436), (4, 5404718), (8, 2702359), (11, 1965352), (22, 982676), (44, 491338), (47, 459976), (88, 245669), (94, 229988), (188, 114994), (376, 57497), (517, 41816), (1034, 20908), (2068, 10454), (4136, 5227)]