20153211

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{269}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 31026240

約数和(自身を除く): 10873029

約数列:

[1, 3, 13, 17, 39, 51, 113, 221, 269, 339, 663, 807, 1469, 1921, 3497, 4407, 4573, 5763, 10491, 13719, 24973, 30397, 59449, 74919, 91191, 178347, 395161, 516749, 1185483, 1550247, 6717737, 20153211]

約数ペア:

[(1, 20153211), (3, 6717737), (13, 1550247), (17, 1185483), (39, 516749), (51, 395161), (113, 178347), (221, 91191), (269, 74919), (339, 59449), (663, 30397), (807, 24973), (1469, 13719), (1921, 10491), (3497, 5763), (4407, 4573)]