197894081

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 253808640

約数和(自身を除く): 55914559

約数列:

[1, 7, 11, 67, 77, 89, 431, 469, 623, 737, 979, 3017, 4741, 5159, 5963, 6853, 28877, 33187, 38359, 41741, 65593, 202139, 268513, 317647, 421949, 459151, 2223529, 2570053, 2953643, 17990371, 28270583, 197894081]

約数ペア:

[(1, 197894081), (7, 28270583), (11, 17990371), (67, 2953643), (77, 2570053), (89, 2223529), (431, 459151), (469, 421949), (623, 317647), (737, 268513), (979, 202139), (3017, 65593), (4741, 41741), (5159, 38359), (5963, 33187), (6853, 28877)]