40001787

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1487}}^1$

素因数の和:1568

約数の個数: 36

約数和(自身を含む): 68361696

約数和(自身を除く): 28359909

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 1281, 1487, 2989, 3843, 4461, 8967, 10409, 13383, 26901, 31227, 72863, 90707, 93681, 218589, 272121, 634949, 655767, 816363, 1904847, 4444643, 5714541, 13333929, 40001787]

約数ペア:

[(1, 40001787), (3, 13333929), (7, 5714541), (9, 4444643), (21, 1904847), (49, 816363), (61, 655767), (63, 634949), (147, 272121), (183, 218589), (427, 93681), (441, 90707), (549, 72863), (1281, 31227), (1487, 26901), (2989, 13383), (3843, 10409), (4461, 8967)]