21685132

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{45557}}^1$

素因数の和:45585

約数の個数: 24

約数和(自身を含む): 45922464

約数和(自身を除く): 24237332

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 45557, 91114, 182228, 318899, 637798, 774469, 1275596, 1548938, 3097876, 5421283, 10842566, 21685132]

約数ペア:

[(1, 21685132), (2, 10842566), (4, 5421283), (7, 3097876), (14, 1548938), (17, 1275596), (28, 774469), (34, 637798), (68, 318899), (119, 182228), (238, 91114), (476, 45557)]