21295998

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{853}}^1$

素因数の和:953

約数の個数: 48

約数和(自身を含む): 49292880

約数和(自身を除く): 27996882

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 73, 114, 146, 171, 219, 342, 438, 657, 853, 1314, 1387, 1706, 2559, 2774, 4161, 5118, 7677, 8322, 12483, 15354, 16207, 24966, 32414, 48621, 62269, 97242, 124538, 145863, 186807, 291726, 373614, 560421, 1120842, 1183111, 2366222, 3549333, 7098666, 10647999, 21295998]

約数ペア:

[(1, 21295998), (2, 10647999), (3, 7098666), (6, 3549333), (9, 2366222), (18, 1183111), (19, 1120842), (38, 560421), (57, 373614), (73, 291726), (114, 186807), (146, 145863), (171, 124538), (219, 97242), (342, 62269), (438, 48621), (657, 32414), (853, 24966), (1314, 16207), (1387, 15354), (1706, 12483), (2559, 8322), (2774, 7677), (4161, 5118)]