20913844

素因数分解:

$2^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1733}}^1$

素因数の和:2175

約数の個数: 24

約数和(自身を含む): 41948928

約数和(自身を除く): 21035084

約数列:

[1, 2, 4, 7, 14, 28, 431, 862, 1724, 1733, 3017, 3466, 6034, 6932, 12068, 12131, 24262, 48524, 746923, 1493846, 2987692, 5228461, 10456922, 20913844]

約数ペア:

[(1, 20913844), (2, 10456922), (4, 5228461), (7, 2987692), (14, 1493846), (28, 746923), (431, 48524), (862, 24262), (1724, 12131), (1733, 12068), (3017, 6932), (3466, 6034)]