721701

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 24

約数和(自身を含む): 1137240

約数和(自身を除く): 415539

約数列:

[1, 3, 9, 17, 51, 53, 89, 153, 159, 267, 477, 801, 901, 1513, 2703, 4539, 4717, 8109, 13617, 14151, 42453, 80189, 240567, 721701]

約数ペア:

[(1, 721701), (3, 240567), (9, 80189), (17, 42453), (51, 14151), (53, 13617), (89, 8109), (153, 4717), (159, 4539), (267, 2703), (477, 1513), (801, 901)]