210855729

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{1373}}^1$

素因数の和:1557

約数の個数: 32

約数和(自身を含む): 329232384

約数和(自身を除く): 118376655

約数列:

[1, 3, 7, 21, 71, 103, 213, 309, 497, 721, 1373, 1491, 2163, 4119, 7313, 9611, 21939, 28833, 51191, 97483, 141419, 153573, 292449, 424257, 682381, 989933, 2047143, 2969799, 10040749, 30122247, 70285243, 210855729]

約数ペア:

[(1, 210855729), (3, 70285243), (7, 30122247), (21, 10040749), (71, 2969799), (103, 2047143), (213, 989933), (309, 682381), (497, 424257), (721, 292449), (1373, 153573), (1491, 141419), (2163, 97483), (4119, 51191), (7313, 28833), (9611, 21939)]