31389561

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{10601}}^1$

素因数の和:10661

約数の個数: 24

約数和(自身を含む): 52925184

約数和(自身を除く): 21535623

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 10601, 31803, 74207, 95409, 222621, 498247, 667863, 1494741, 3487729, 4484223, 10463187, 31389561]

約数ペア:

[(1, 31389561), (3, 10463187), (7, 4484223), (9, 3487729), (21, 1494741), (47, 667863), (63, 498247), (141, 222621), (329, 95409), (423, 74207), (987, 31803), (2961, 10601)]