21495327

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3169}}^1$

素因数の和:3215

約数の個数: 32

約数和(自身を含む): 36518400

約数和(自身を除く): 15023073

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 3169, 6783, 9507, 22183, 53873, 60211, 66549, 161619, 180633, 377111, 421477, 1023587, 1131333, 1264431, 3070761, 7165109, 21495327]

約数ペア:

[(1, 21495327), (3, 7165109), (7, 3070761), (17, 1264431), (19, 1131333), (21, 1023587), (51, 421477), (57, 377111), (119, 180633), (133, 161619), (323, 66549), (357, 60211), (399, 53873), (969, 22183), (2261, 9507), (3169, 6783)]