217898876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{135173}}^1$

素因数の和:135221

約数の個数: 24

約数和(自身を含む): 423905664

約数和(自身を除く): 206006788

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 135173, 270346, 540692, 1757249, 3514498, 4190363, 7028996, 8380726, 16761452, 54474719, 108949438, 217898876]

約数ペア:

[(1, 217898876), (2, 108949438), (4, 54474719), (13, 16761452), (26, 8380726), (31, 7028996), (52, 4190363), (62, 3514498), (124, 1757249), (403, 540692), (806, 270346), (1612, 135173)]