21090333

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{751}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 32919552

約数和(自身を除く): 11829219

約数列:

[1, 3, 11, 23, 33, 37, 69, 111, 253, 407, 751, 759, 851, 1221, 2253, 2553, 8261, 9361, 17273, 24783, 27787, 28083, 51819, 83361, 190003, 305657, 570009, 639101, 916971, 1917303, 7030111, 21090333]

約数ペア:

[(1, 21090333), (3, 7030111), (11, 1917303), (23, 916971), (33, 639101), (37, 570009), (69, 305657), (111, 190003), (253, 83361), (407, 51819), (751, 28083), (759, 27787), (851, 24783), (1221, 17273), (2253, 9361), (2553, 8261)]