20868892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{7079}}^1$

素因数の和:7161

約数の個数: 24

約数和(自身を含む): 40440960

約数和(自身を除く): 19572068

約数列:

[1, 2, 4, 11, 22, 44, 67, 134, 268, 737, 1474, 2948, 7079, 14158, 28316, 77869, 155738, 311476, 474293, 948586, 1897172, 5217223, 10434446, 20868892]

約数ペア:

[(1, 20868892), (2, 10434446), (4, 5217223), (11, 1897172), (22, 948586), (44, 474293), (67, 311476), (134, 155738), (268, 77869), (737, 28316), (1474, 14158), (2948, 7079)]