21995612

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{331}}^1\times {\mathrm{449}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 39740400

約数和(自身を除く): 17744788

約数列:

[1, 2, 4, 37, 74, 148, 331, 449, 662, 898, 1324, 1796, 12247, 16613, 24494, 33226, 48988, 66452, 148619, 297238, 594476, 5498903, 10997806, 21995612]

約数ペア:

[(1, 21995612), (2, 10997806), (4, 5498903), (37, 594476), (74, 297238), (148, 148619), (331, 66452), (449, 48988), (662, 33226), (898, 24494), (1324, 16613), (1796, 12247)]