20211570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3163}}^1$

素因数の和:3247

約数の個数: 48

約数和(自身を含む): 53307072

約数和(自身を除く): 33095502

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3163, 3195, 6326, 6390, 9489, 15815, 18978, 28467, 31630, 47445, 56934, 94890, 142335, 224573, 284670, 449146, 673719, 1122865, 1347438, 2021157, 2245730, 3368595, 4042314, 6737190, 10105785, 20211570]

約数ペア:

[(1, 20211570), (2, 10105785), (3, 6737190), (5, 4042314), (6, 3368595), (9, 2245730), (10, 2021157), (15, 1347438), (18, 1122865), (30, 673719), (45, 449146), (71, 284670), (90, 224573), (142, 142335), (213, 94890), (355, 56934), (426, 47445), (639, 31630), (710, 28467), (1065, 18978), (1278, 15815), (2130, 9489), (3163, 6390), (3195, 6326)]