21680298

素因数分解:

$2^1\times 3^4\times {\mathrm{37}}^1\times {\mathrm{3617}}^1$

素因数の和:3668

約数の個数: 40

約数和(自身を含む): 49906692

約数和(自身を除く): 28226394

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 81, 111, 162, 222, 333, 666, 999, 1998, 2997, 3617, 5994, 7234, 10851, 21702, 32553, 65106, 97659, 133829, 195318, 267658, 292977, 401487, 585954, 802974, 1204461, 2408922, 3613383, 7226766, 10840149, 21680298]

約数ペア:

[(1, 21680298), (2, 10840149), (3, 7226766), (6, 3613383), (9, 2408922), (18, 1204461), (27, 802974), (37, 585954), (54, 401487), (74, 292977), (81, 267658), (111, 195318), (162, 133829), (222, 97659), (333, 65106), (666, 32553), (999, 21702), (1998, 10851), (2997, 7234), (3617, 5994)]