19851831

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 10791369

約数列:

[1, 3, 9, 27, 41, 79, 123, 227, 237, 369, 681, 711, 1107, 2043, 2133, 3239, 6129, 9307, 9717, 17933, 27921, 29151, 53799, 83763, 87453, 161397, 251289, 484191, 735253, 2205759, 6617277, 19851831]

約数ペア:

[(1, 19851831), (3, 6617277), (9, 2205759), (27, 735253), (41, 484191), (79, 251289), (123, 161397), (227, 87453), (237, 83763), (369, 53799), (681, 29151), (711, 27921), (1107, 17933), (2043, 9717), (2133, 9307), (3239, 6129)]