21313299

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13903}}^1$

素因数の和:13986

約数の個数: 16

約数和(自身を含む): 32924672

約数和(自身を除く): 11611373

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 13903, 41709, 97321, 291963, 1014919, 3044757, 7104433, 21313299]

約数ペア:

[(1, 21313299), (3, 7104433), (7, 3044757), (21, 1014919), (73, 291963), (219, 97321), (511, 41709), (1533, 13903)]