20891616

素因数分解:

$2^5\times 3^1\times {\mathrm{269}}^1\times {\mathrm{809}}^1$

素因数の和:1091

約数の個数: 48

約数和(自身を含む): 55112400

約数和(自身を除く): 34220784

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 269, 538, 807, 809, 1076, 1614, 1618, 2152, 2427, 3228, 3236, 4304, 4854, 6456, 6472, 8608, 9708, 12912, 12944, 19416, 25824, 25888, 38832, 77664, 217621, 435242, 652863, 870484, 1305726, 1740968, 2611452, 3481936, 5222904, 6963872, 10445808, 20891616]

約数ペア:

[(1, 20891616), (2, 10445808), (3, 6963872), (4, 5222904), (6, 3481936), (8, 2611452), (12, 1740968), (16, 1305726), (24, 870484), (32, 652863), (48, 435242), (96, 217621), (269, 77664), (538, 38832), (807, 25888), (809, 25824), (1076, 19416), (1614, 12944), (1618, 12912), (2152, 9708), (2427, 8608), (3228, 6472), (3236, 6456), (4304, 4854)]