21836908

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4793}}^1$

素因数の和:4881

約数の個数: 24

約数和(自身を含む): 41074992

約数和(自身を除く): 19238084

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4556, 4793, 9586, 19172, 81481, 162962, 321131, 325924, 642262, 1284524, 5459227, 10918454, 21836908]

約数ペア:

[(1, 21836908), (2, 10918454), (4, 5459227), (17, 1284524), (34, 642262), (67, 325924), (68, 321131), (134, 162962), (268, 81481), (1139, 19172), (2278, 9586), (4556, 4793)]