19569277

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1049

約数の個数: 24

約数和(自身を含む): 25331712

約数和(自身を除く): 5762435

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 637, 991, 1519, 2821, 6937, 12883, 19747, 30721, 48559, 90181, 215047, 399373, 631267, 1505329, 2795611, 19569277]

約数ペア:

[(1, 19569277), (7, 2795611), (13, 1505329), (31, 631267), (49, 399373), (91, 215047), (217, 90181), (403, 48559), (637, 30721), (991, 19747), (1519, 12883), (2821, 6937)]