21000978846

素因数分解:

$2^1\times 3^2\times {\mathrm{59}}^1\times {\mathrm{331}}^1\times {\mathrm{59743}}^1$

素因数の和:60141

約数の個数: 48

約数和(自身を含む): 46413918720

約数和(自身を除く): 25412939874

約数列:

[1, 2, 3, 6, 9, 18, 59, 118, 177, 331, 354, 531, 662, 993, 1062, 1986, 2979, 5958, 19529, 39058, 58587, 59743, 117174, 119486, 175761, 179229, 351522, 358458, 537687, 1075374, 3524837, 7049674, 10574511, 19774933, 21149022, 31723533, 39549866, 59324799, 63447066, 118649598, 177974397, 355948794, 1166721047, 2333442094, 3500163141, 7000326282, 10500489423, 21000978846]

約数ペア:

[(1, 21000978846), (2, 10500489423), (3, 7000326282), (6, 3500163141), (9, 2333442094), (18, 1166721047), (59, 355948794), (118, 177974397), (177, 118649598), (331, 63447066), (354, 59324799), (531, 39549866), (662, 31723533), (993, 21149022), (1062, 19774933), (1986, 10574511), (2979, 7049674), (5958, 3524837), (19529, 1075374), (39058, 537687), (58587, 358458), (59743, 351522), (117174, 179229), (119486, 175761)]