20540097

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:242

約数の個数: 36

約数和(自身を含む): 32327100

約数和(自身を除く): 11787003

約数列:

[1, 3, 9, 17, 51, 53, 149, 153, 159, 289, 447, 477, 867, 901, 1341, 2533, 2601, 2703, 7599, 7897, 8109, 15317, 22797, 23691, 43061, 45951, 71073, 129183, 134249, 137853, 387549, 402747, 1208241, 2282233, 6846699, 20540097]

約数ペア:

[(1, 20540097), (3, 6846699), (9, 2282233), (17, 1208241), (51, 402747), (53, 387549), (149, 137853), (153, 134249), (159, 129183), (289, 71073), (447, 45951), (477, 43061), (867, 23691), (901, 22797), (1341, 15317), (2533, 8109), (2601, 7897), (2703, 7599)]