21840597

素因数分解:

$3^5\times {\mathrm{17}}^2\times {\mathrm{311}}^1$

素因数の和:360

約数の個数: 36

約数和(自身を含む): 34865376

約数和(自身を除く): 13024779

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 289, 311, 459, 867, 933, 1377, 2601, 2799, 4131, 5287, 7803, 8397, 15861, 23409, 25191, 47583, 70227, 75573, 89879, 142749, 269637, 428247, 808911, 1284741, 2426733, 7280199, 21840597]

約数ペア:

[(1, 21840597), (3, 7280199), (9, 2426733), (17, 1284741), (27, 808911), (51, 428247), (81, 269637), (153, 142749), (243, 89879), (289, 75573), (311, 70227), (459, 47583), (867, 25191), (933, 23409), (1377, 15861), (2601, 8397), (2799, 7803), (4131, 5287)]