21169701

素因数分解:

$3^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1109}}^1$

素因数の和:1226

約数の個数: 32

約数和(自身を含む): 36230400

約数和(自身を除く): 15060699

約数列:

[1, 3, 7, 9, 21, 27, 63, 101, 189, 303, 707, 909, 1109, 2121, 2727, 3327, 6363, 7763, 9981, 19089, 23289, 29943, 69867, 112009, 209601, 336027, 784063, 1008081, 2352189, 3024243, 7056567, 21169701]

約数ペア:

[(1, 21169701), (3, 7056567), (7, 3024243), (9, 2352189), (21, 1008081), (27, 784063), (63, 336027), (101, 209601), (189, 112009), (303, 69867), (707, 29943), (909, 23289), (1109, 19089), (2121, 9981), (2727, 7763), (3327, 6363)]