201425721

素因数分解:

$3^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{3209}}^1$

素因数の和:3294

約数の個数: 32

約数和(自身を含む): 318432000

約数和(自身を除く): 117006279

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 343, 427, 1029, 1281, 2989, 3209, 8967, 9627, 20923, 22463, 62769, 67389, 157241, 195749, 471723, 587247, 1100687, 1370243, 3302061, 4110729, 9591701, 28775103, 67141907, 201425721]

約数ペア:

[(1, 201425721), (3, 67141907), (7, 28775103), (21, 9591701), (49, 4110729), (61, 3302061), (147, 1370243), (183, 1100687), (343, 587247), (427, 471723), (1029, 195749), (1281, 157241), (2989, 67389), (3209, 62769), (8967, 22463), (9627, 20923)]