211021000420

素因数分解:

$2^2\times 5^1\times {\mathrm{16069}}^1\times {\mathrm{656609}}^1$

素因数の和:672687

約数の個数: 24

約数和(自身を含む): 443172353400

約数和(自身を除く): 232151352980

約数列:

[1, 2, 4, 5, 10, 20, 16069, 32138, 64276, 80345, 160690, 321380, 656609, 1313218, 2626436, 3283045, 6566090, 13132180, 10551050021, 21102100042, 42204200084, 52755250105, 105510500210, 211021000420]

約数ペア:

[(1, 211021000420), (2, 105510500210), (4, 52755250105), (5, 42204200084), (10, 21102100042), (20, 10551050021), (16069, 13132180), (32138, 6566090), (64276, 3283045), (80345, 2626436), (160690, 1313218), (321380, 656609)]