20693295

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{367}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 41333760

約数和(自身を除く): 20640465

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 179, 315, 367, 537, 895, 1101, 1253, 1611, 1835, 2569, 2685, 3303, 3759, 5505, 6265, 7707, 8055, 11277, 12845, 16515, 18795, 23121, 38535, 56385, 65693, 115605, 197079, 328465, 459851, 591237, 985395, 1379553, 2299255, 2956185, 4138659, 6897765, 20693295]

約数ペア:

[(1, 20693295), (3, 6897765), (5, 4138659), (7, 2956185), (9, 2299255), (15, 1379553), (21, 985395), (35, 591237), (45, 459851), (63, 328465), (105, 197079), (179, 115605), (315, 65693), (367, 56385), (537, 38535), (895, 23121), (1101, 18795), (1253, 16515), (1611, 12845), (1835, 11277), (2569, 8055), (2685, 7707), (3303, 6265), (3759, 5505)]