20657574

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2447}}^1$

素因数の和:2529

約数の個数: 48

約数和(自身を含む): 51936768

約数和(自身を除く): 31279194

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 67, 126, 134, 201, 402, 469, 603, 938, 1206, 1407, 2447, 2814, 4221, 4894, 7341, 8442, 14682, 17129, 22023, 34258, 44046, 51387, 102774, 154161, 163949, 308322, 327898, 491847, 983694, 1147643, 1475541, 2295286, 2951082, 3442929, 6885858, 10328787, 20657574]

約数ペア:

[(1, 20657574), (2, 10328787), (3, 6885858), (6, 3442929), (7, 2951082), (9, 2295286), (14, 1475541), (18, 1147643), (21, 983694), (42, 491847), (63, 327898), (67, 308322), (126, 163949), (134, 154161), (201, 102774), (402, 51387), (469, 44046), (603, 34258), (938, 22023), (1206, 17129), (1407, 14682), (2447, 8442), (2814, 7341), (4221, 4894)]