20441416

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{743}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 40622400

約数和(自身を除く): 20180984

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 181, 362, 724, 743, 1448, 1486, 2972, 3439, 5944, 6878, 13756, 14117, 27512, 28234, 56468, 112936, 134483, 268966, 537932, 1075864, 2555177, 5110354, 10220708, 20441416]

約数ペア:

[(1, 20441416), (2, 10220708), (4, 5110354), (8, 2555177), (19, 1075864), (38, 537932), (76, 268966), (152, 134483), (181, 112936), (362, 56468), (724, 28234), (743, 27512), (1448, 14117), (1486, 13756), (2972, 6878), (3439, 5944)]