21315816

素因数分解:

$2^3\times 3^2\times {\mathrm{47}}^1\times {\mathrm{6299}}^1$

素因数の和:6358

約数の個数: 48

約数和(自身を含む): 58968000

約数和(自身を除く): 37652184

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 47, 72, 94, 141, 188, 282, 376, 423, 564, 846, 1128, 1692, 3384, 6299, 12598, 18897, 25196, 37794, 50392, 56691, 75588, 113382, 151176, 226764, 296053, 453528, 592106, 888159, 1184212, 1776318, 2368424, 2664477, 3552636, 5328954, 7105272, 10657908, 21315816]

約数ペア:

[(1, 21315816), (2, 10657908), (3, 7105272), (4, 5328954), (6, 3552636), (8, 2664477), (9, 2368424), (12, 1776318), (18, 1184212), (24, 888159), (36, 592106), (47, 453528), (72, 296053), (94, 226764), (141, 151176), (188, 113382), (282, 75588), (376, 56691), (423, 50392), (564, 37794), (846, 25196), (1128, 18897), (1692, 12598), (3384, 6299)]