21094335

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 38750400

約数和(自身を除く): 17656065

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 89, 115, 207, 229, 267, 345, 445, 687, 801, 1035, 1145, 1335, 2047, 2061, 3435, 4005, 5267, 6141, 10235, 10305, 15801, 18423, 20381, 26335, 30705, 47403, 61143, 79005, 92115, 101905, 183429, 237015, 305715, 468763, 917145, 1406289, 2343815, 4218867, 7031445, 21094335]

約数ペア:

[(1, 21094335), (3, 7031445), (5, 4218867), (9, 2343815), (15, 1406289), (23, 917145), (45, 468763), (69, 305715), (89, 237015), (115, 183429), (207, 101905), (229, 92115), (267, 79005), (345, 61143), (445, 47403), (687, 30705), (801, 26335), (1035, 20381), (1145, 18423), (1335, 15801), (2047, 10305), (2061, 10235), (3435, 6141), (4005, 5267)]