20121918

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1049}}^1$

素因数の和:1216

約数の個数: 32

約数和(自身を含む): 42336000

約数和(自身を除く): 22214082

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 139, 278, 417, 834, 1049, 2098, 3147, 3197, 6294, 6394, 9591, 19182, 24127, 48254, 72381, 144762, 145811, 291622, 437433, 874866, 3353653, 6707306, 10060959, 20121918]

約数ペア:

[(1, 20121918), (2, 10060959), (3, 6707306), (6, 3353653), (23, 874866), (46, 437433), (69, 291622), (138, 145811), (139, 144762), (278, 72381), (417, 48254), (834, 24127), (1049, 19182), (2098, 9591), (3147, 6394), (3197, 6294)]