30978129

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2141}}^1$

素因数の和:2217

約数の個数: 32

約数和(自身を含む): 51819264

約数和(自身を除く): 20841135

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 2067, 2141, 4823, 6423, 14469, 14987, 27833, 44961, 83499, 113473, 194831, 340419, 584493, 794311, 1475149, 2382933, 4425447, 10326043, 30978129]

約数ペア:

[(1, 30978129), (3, 10326043), (7, 4425447), (13, 2382933), (21, 1475149), (39, 794311), (53, 584493), (91, 340419), (159, 194831), (273, 113473), (371, 83499), (689, 44961), (1113, 27833), (2067, 14987), (2141, 14469), (4823, 6423)]