221293071

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{431}}^1\times {\mathrm{641}}^1$

素因数の和:1167

約数の個数: 24

約数和(自身を含む): 324492480

約数和(自身を除く): 103199409

約数列:

[1, 3, 9, 89, 267, 431, 641, 801, 1293, 1923, 3879, 5769, 38359, 57049, 115077, 171147, 276271, 345231, 513441, 828813, 2486439, 24588119, 73764357, 221293071]

約数ペア:

[(1, 221293071), (3, 73764357), (9, 24588119), (89, 2486439), (267, 828813), (431, 513441), (641, 345231), (801, 276271), (1293, 171147), (1923, 115077), (3879, 57049), (5769, 38359)]