21665560.000000000

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{1439}}^1\times {\mathrm{2039}}^1$

素因数の和:3490

約数の個数: 32

約数和(自身を含む): 282009600

約数和(自身を除く): 158776518

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 1439, 2039, 2878, 4078, 4317, 6117, 8634, 10073, 12234, 14273, 20146, 28546, 30219, 42819, 60438, 85638, 2934121, 5868242, 8802363, 17604726, 20538847, 41077694, 61616541, 123233082]

約数ペア:

[(1, 123233082), (2, 61616541), (3, 41077694), (6, 20538847), (7, 17604726), (14, 8802363), (21, 5868242), (42, 2934121), (1439, 85638), (2039, 60438), (2878, 42819), (4078, 30219), (4317, 28546), (6117, 20146), (8634, 14273), (10073, 12234)]