642912237

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{557}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 1034130240

約数和(自身を除く): 391218003

約数列:

[1, 3, 9, 11, 33, 89, 99, 131, 267, 393, 557, 801, 979, 1179, 1441, 1671, 2937, 4323, 5013, 6127, 8811, 11659, 12969, 18381, 34977, 49573, 55143, 72967, 104931, 128249, 148719, 218901, 384747, 446157, 545303, 656703, 802637, 1154241, 1635909, 2407911, 4907727, 6494063, 7223733, 19482189, 58446567, 71434693, 214304079, 642912237]

約数ペア:

[(1, 642912237), (3, 214304079), (9, 71434693), (11, 58446567), (33, 19482189), (89, 7223733), (99, 6494063), (131, 4907727), (267, 2407911), (393, 1635909), (557, 1154241), (801, 802637), (979, 656703), (1179, 545303), (1441, 446157), (1671, 384747), (2937, 218901), (4323, 148719), (5013, 128249), (6127, 104931), (8811, 72967), (11659, 55143), (12969, 49573), (18381, 34977)]