21683340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17209}}^1$

素因数の和:17231

約数の個数: 72

約数和(自身を含む): 75173280

約数和(自身を除く): 53489940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 17209, 34418, 51627, 68836, 86045, 103254, 120463, 154881, 172090, 206508, 240926, 258135, 309762, 344180, 361389, 481852, 516270, 602315, 619524, 722778, 774405, 1032540, 1084167, 1204630, 1445556, 1548810, 1806945, 2168334, 2409260, 3097620, 3613890, 4336668, 5420835, 7227780, 10841670, 21683340]

約数ペア:

[(1, 21683340), (2, 10841670), (3, 7227780), (4, 5420835), (5, 4336668), (6, 3613890), (7, 3097620), (9, 2409260), (10, 2168334), (12, 1806945), (14, 1548810), (15, 1445556), (18, 1204630), (20, 1084167), (21, 1032540), (28, 774405), (30, 722778), (35, 619524), (36, 602315), (42, 516270), (45, 481852), (60, 361389), (63, 344180), (70, 309762), (84, 258135), (90, 240926), (105, 206508), (126, 172090), (140, 154881), (180, 120463), (210, 103254), (252, 86045), (315, 68836), (420, 51627), (630, 34418), (1260, 17209)]