21861760

素因数分解:

$2^7\times 5^1\times {\mathrm{34159}}^1$

素因数の和:34178

約数の個数: 32

約数和(自身を含む): 52264800

約数和(自身を除く): 30403040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 34159, 68318, 136636, 170795, 273272, 341590, 546544, 683180, 1093088, 1366360, 2186176, 2732720, 4372352, 5465440, 10930880, 21861760]

約数ペア:

[(1, 21861760), (2, 10930880), (4, 5465440), (5, 4372352), (8, 2732720), (10, 2186176), (16, 1366360), (20, 1093088), (32, 683180), (40, 546544), (64, 341590), (80, 273272), (128, 170795), (160, 136636), (320, 68318), (640, 34159)]