21686472

素因数分解:

$2^3\times 3^2\times {\mathrm{359}}^1\times {\mathrm{839}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 58968000

約数和(自身を除く): 37281528

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 359, 718, 839, 1077, 1436, 1678, 2154, 2517, 2872, 3231, 3356, 4308, 5034, 6462, 6712, 7551, 8616, 10068, 12924, 15102, 20136, 25848, 30204, 60408, 301201, 602402, 903603, 1204804, 1807206, 2409608, 2710809, 3614412, 5421618, 7228824, 10843236, 21686472]

約数ペア:

[(1, 21686472), (2, 10843236), (3, 7228824), (4, 5421618), (6, 3614412), (8, 2710809), (9, 2409608), (12, 1807206), (18, 1204804), (24, 903603), (36, 602402), (72, 301201), (359, 60408), (718, 30204), (839, 25848), (1077, 20136), (1436, 15102), (1678, 12924), (2154, 10068), (2517, 8616), (2872, 7551), (3231, 6712), (3356, 6462), (4308, 5034)]