21523892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{4987}}^1$

素因数の和:5087

約数の個数: 24

約数和(自身を含む): 41061216

約数和(自身を除く): 19537324

約数列:

[1, 2, 4, 13, 26, 52, 83, 166, 332, 1079, 2158, 4316, 4987, 9974, 19948, 64831, 129662, 259324, 413921, 827842, 1655684, 5380973, 10761946, 21523892]

約数ペア:

[(1, 21523892), (2, 10761946), (4, 5380973), (13, 1655684), (26, 827842), (52, 413921), (83, 259324), (166, 129662), (332, 64831), (1079, 19948), (2158, 9974), (4316, 4987)]