64940211

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2161}}^1$

素因数の和:2233

約数の個数: 40

約数和(自身を含む): 113012064

約数和(自身を除く): 48071853

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 567, 1113, 1431, 2161, 3339, 4293, 6483, 10017, 15127, 19449, 30051, 45381, 58347, 114533, 136143, 175041, 343599, 408429, 801731, 1030797, 1225287, 2405193, 3092391, 7215579, 9277173, 21646737, 64940211]

約数ペア:

[(1, 64940211), (3, 21646737), (7, 9277173), (9, 7215579), (21, 3092391), (27, 2405193), (53, 1225287), (63, 1030797), (81, 801731), (159, 408429), (189, 343599), (371, 175041), (477, 136143), (567, 114533), (1113, 58347), (1431, 45381), (2161, 30051), (3339, 19449), (4293, 15127), (6483, 10017)]