21014217

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^2\times {\mathrm{151}}^1$

素因数の和:258

約数の個数: 36

約数和(自身を含む): 35678656

約数和(自身を除く): 14664439

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 151, 329, 423, 453, 987, 1057, 1359, 2209, 2961, 3171, 6627, 7097, 9513, 15463, 19881, 21291, 46389, 49679, 63873, 139167, 149037, 333559, 447111, 1000677, 2334913, 3002031, 7004739, 21014217]

約数ペア:

[(1, 21014217), (3, 7004739), (7, 3002031), (9, 2334913), (21, 1000677), (47, 447111), (63, 333559), (141, 149037), (151, 139167), (329, 63873), (423, 49679), (453, 46389), (987, 21291), (1057, 19881), (1359, 15463), (2209, 9513), (2961, 7097), (3171, 6627)]