221528804

素因数分解:

$2^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{15919}}^1$

素因数の和:16008

約数の個数: 36

約数和(自身を含む): 457349760

約数和(自身を除く): 235820956

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 497, 994, 1988, 3479, 6958, 13916, 15919, 31838, 63676, 111433, 222866, 445732, 780031, 1130249, 1560062, 2260498, 3120124, 4520996, 7911743, 15823486, 31646972, 55382201, 110764402, 221528804]

約数ペア:

[(1, 221528804), (2, 110764402), (4, 55382201), (7, 31646972), (14, 15823486), (28, 7911743), (49, 4520996), (71, 3120124), (98, 2260498), (142, 1560062), (196, 1130249), (284, 780031), (497, 445732), (994, 222866), (1988, 111433), (3479, 63676), (6958, 31838), (13916, 15919)]