1640355921

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{18757}}^1$

素因数の和:18886

約数の個数: 32

約数和(自身を含む): 2521075200

約数和(自身を除く): 880719279

約数列:

[1, 3, 9, 27, 41, 79, 123, 237, 369, 711, 1107, 2133, 3239, 9717, 18757, 29151, 56271, 87453, 168813, 506439, 769037, 1481803, 2307111, 4445409, 6921333, 13336227, 20763999, 40008681, 60753923, 182261769, 546785307, 1640355921]

約数ペア:

[(1, 1640355921), (3, 546785307), (9, 182261769), (27, 60753923), (41, 40008681), (79, 20763999), (123, 13336227), (237, 6921333), (369, 4445409), (711, 2307111), (1107, 1481803), (2133, 769037), (3239, 506439), (9717, 168813), (18757, 87453), (29151, 56271)]