661763913

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1\times {\mathrm{653}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 967375872

約数和(自身を除く): 305611959

約数列:

[1, 3, 17, 31, 51, 93, 527, 641, 653, 1581, 1923, 1959, 10897, 11101, 19871, 20243, 32691, 33303, 59613, 60729, 337807, 344131, 418573, 1013421, 1032393, 1255719, 7115741, 12975763, 21347223, 38927289, 220587971, 661763913]

約数ペア:

[(1, 661763913), (3, 220587971), (17, 38927289), (31, 21347223), (51, 12975763), (93, 7115741), (527, 1255719), (641, 1032393), (653, 1013421), (1581, 418573), (1923, 344131), (1959, 337807), (10897, 60729), (11101, 59613), (19871, 33303), (20243, 32691)]