21323956

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{251}}^1\times {\mathrm{317}}^1$

素因数の和:639

約数の個数: 24

約数和(自身を含む): 38144736

約数和(自身を除く): 16820780

約数列:

[1, 2, 4, 67, 134, 251, 268, 317, 502, 634, 1004, 1268, 16817, 21239, 33634, 42478, 67268, 79567, 84956, 159134, 318268, 5330989, 10661978, 21323956]

約数ペア:

[(1, 21323956), (2, 10661978), (4, 5330989), (67, 318268), (134, 159134), (251, 84956), (268, 79567), (317, 67268), (502, 42478), (634, 33634), (1004, 21239), (1268, 16817)]