21344715

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{7529}}^1$

素因数の和:7553

約数の個数: 40

約数和(自身を含む): 43734240

約数和(自身を除く): 22389525

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 7529, 22587, 37645, 52703, 67761, 112935, 158109, 203283, 263515, 338805, 474327, 609849, 790545, 1016415, 1422981, 2371635, 3049245, 4268943, 7114905, 21344715]

約数ペア:

[(1, 21344715), (3, 7114905), (5, 4268943), (7, 3049245), (9, 2371635), (15, 1422981), (21, 1016415), (27, 790545), (35, 609849), (45, 474327), (63, 338805), (81, 263515), (105, 203283), (135, 158109), (189, 112935), (315, 67761), (405, 52703), (567, 37645), (945, 22587), (2835, 7529)]