20189785

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{229}}^2$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 30338496

約数和(自身を除く): 10148711

約数列:

[1, 5, 7, 11, 35, 55, 77, 229, 385, 1145, 1603, 2519, 8015, 12595, 17633, 52441, 88165, 262205, 367087, 576851, 1835435, 2884255, 4037957, 20189785]

約数ペア:

[(1, 20189785), (5, 4037957), (7, 2884255), (11, 1835435), (35, 576851), (55, 367087), (77, 262205), (229, 88165), (385, 52441), (1145, 17633), (1603, 12595), (2519, 8015)]