25394103

素因数分解:

$3^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:756

約数の個数: 36

約数和(自身を含む): 43215120

約数和(自身を除く): 17821017

約数列:

[1, 3, 7, 9, 21, 49, 63, 89, 147, 267, 441, 623, 647, 801, 1869, 1941, 4361, 4529, 5607, 5823, 13083, 13587, 31703, 39249, 40761, 57583, 95109, 172749, 285327, 403081, 518247, 1209243, 2821567, 3627729, 8464701, 25394103]

約数ペア:

[(1, 25394103), (3, 8464701), (7, 3627729), (9, 2821567), (21, 1209243), (49, 518247), (63, 403081), (89, 285327), (147, 172749), (267, 95109), (441, 57583), (623, 40761), (647, 39249), (801, 31703), (1869, 13587), (1941, 13083), (4361, 5823), (4529, 5607)]