20728474

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2039}}^1$

素因数の和:2094

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 16285286

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 221, 299, 391, 442, 598, 782, 2039, 4078, 5083, 10166, 26507, 34663, 46897, 53014, 69326, 93794, 450619, 609661, 797249, 901238, 1219322, 1594498, 10364237, 20728474]

約数ペア:

[(1, 20728474), (2, 10364237), (13, 1594498), (17, 1219322), (23, 901238), (26, 797249), (34, 609661), (46, 450619), (221, 93794), (299, 69326), (391, 53014), (442, 46897), (598, 34663), (782, 26507), (2039, 10166), (4078, 5083)]