21236355

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9631}}^1$

素因数の和:9656

約数の個数: 36

約数和(自身を含む): 42823872

約数和(自身を除く): 21587517

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9631, 28893, 48155, 67417, 86679, 144465, 202251, 337085, 433395, 471919, 606753, 1011255, 1415757, 2359595, 3033765, 4247271, 7078785, 21236355]

約数ペア:

[(1, 21236355), (3, 7078785), (5, 4247271), (7, 3033765), (9, 2359595), (15, 1415757), (21, 1011255), (35, 606753), (45, 471919), (49, 433395), (63, 337085), (105, 202251), (147, 144465), (245, 86679), (315, 67417), (441, 48155), (735, 28893), (2205, 9631)]