20218191847

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{367}}^1\times {\mathrm{1999}}^1$

素因数の和:2531

約数の個数: 32

約数和(自身を含む): 24117248000

約数和(自身を除く): 3899056153

約数列:

[1, 7, 31, 127, 217, 367, 889, 1999, 2569, 3937, 11377, 13993, 27559, 46609, 61969, 79639, 253873, 326263, 433783, 733633, 1444879, 1777111, 5135431, 7870063, 10114153, 22742623, 55090441, 93171391, 159198361, 652199737, 2888313121, 20218191847]

約数ペア:

[(1, 20218191847), (7, 2888313121), (31, 652199737), (127, 159198361), (217, 93171391), (367, 55090441), (889, 22742623), (1999, 10114153), (2569, 7870063), (3937, 5135431), (11377, 1777111), (13993, 1444879), (27559, 733633), (46609, 433783), (61969, 326263), (79639, 253873)]