20890246

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{313}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 36082368

約数和(自身を除く): 15192122

約数列:

[1, 2, 13, 17, 26, 34, 151, 221, 302, 313, 442, 626, 1963, 2567, 3926, 4069, 5134, 5321, 8138, 10642, 33371, 47263, 66742, 69173, 94526, 138346, 614419, 803471, 1228838, 1606942, 10445123, 20890246]

約数ペア:

[(1, 20890246), (2, 10445123), (13, 1606942), (17, 1228838), (26, 803471), (34, 614419), (151, 138346), (221, 94526), (302, 69173), (313, 66742), (442, 47263), (626, 33371), (1963, 10642), (2567, 8138), (3926, 5321), (4069, 5134)]