21758265

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16673}}^1$

素因数の和:16713

約数の個数: 24

約数和(自身を含む): 39017160

約数和(自身を除く): 17258895

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16673, 50019, 83365, 150057, 250095, 483517, 750285, 1450551, 2417585, 4351653, 7252755, 21758265]

約数ペア:

[(1, 21758265), (3, 7252755), (5, 4351653), (9, 2417585), (15, 1450551), (29, 750285), (45, 483517), (87, 250095), (145, 150057), (261, 83365), (435, 50019), (1305, 16673)]