20348007813

素因数分解:

$3^4\times 7^1\times {\mathrm{263}}^1\times {\mathrm{136453}}^1$

素因数の和:136735

約数の個数: 40

約数和(自身を含む): 34871092608

約数和(自身を除く): 14523084795

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 263, 567, 789, 1841, 2367, 5523, 7101, 16569, 21303, 49707, 136453, 149121, 409359, 955171, 1228077, 2865513, 3684231, 8596539, 11052693, 25789617, 35887139, 77368851, 107661417, 251209973, 322984251, 753629919, 968952753, 2260889757, 2906858259, 6782669271, 20348007813]

約数ペア:

[(1, 20348007813), (3, 6782669271), (7, 2906858259), (9, 2260889757), (21, 968952753), (27, 753629919), (63, 322984251), (81, 251209973), (189, 107661417), (263, 77368851), (567, 35887139), (789, 25789617), (1841, 11052693), (2367, 8596539), (5523, 3684231), (7101, 2865513), (16569, 1228077), (21303, 955171), (49707, 409359), (136453, 149121)]