21090230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9719}}^1$

素因数の和:9764

約数の個数: 32

約数和(自身を含む): 44789760

約数和(自身を除く): 23699530

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9719, 19438, 48595, 68033, 97190, 136066, 301289, 340165, 602578, 680330, 1506445, 2109023, 3012890, 4218046, 10545115, 21090230]

約数ペア:

[(1, 21090230), (2, 10545115), (5, 4218046), (7, 3012890), (10, 2109023), (14, 1506445), (31, 680330), (35, 602578), (62, 340165), (70, 301289), (155, 136066), (217, 97190), (310, 68033), (434, 48595), (1085, 19438), (2170, 9719)]