21797200

素因数分解:

$2^4\times 5^2\times {\mathrm{54493}}^1$

素因数の和:54511

約数の個数: 30

約数和(自身を含む): 52368734

約数和(自身を除く): 30571534

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 54493, 108986, 217972, 272465, 435944, 544930, 871888, 1089860, 1362325, 2179720, 2724650, 4359440, 5449300, 10898600, 21797200]

約数ペア:

[(1, 21797200), (2, 10898600), (4, 5449300), (5, 4359440), (8, 2724650), (10, 2179720), (16, 1362325), (20, 1089860), (25, 871888), (40, 544930), (50, 435944), (80, 272465), (100, 217972), (200, 108986), (400, 54493)]