20715966

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 49401600

約数和(自身を除く): 28685634

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 61, 114, 122, 171, 183, 331, 342, 366, 513, 549, 662, 993, 1026, 1098, 1159, 1647, 1986, 2318, 2979, 3294, 3477, 5958, 6289, 6954, 8937, 10431, 12578, 17874, 18867, 20191, 20862, 31293, 37734, 40382, 56601, 60573, 62586, 113202, 121146, 169803, 181719, 339606, 363438, 383629, 545157, 767258, 1090314, 1150887, 2301774, 3452661, 6905322, 10357983, 20715966]

約数ペア:

[(1, 20715966), (2, 10357983), (3, 6905322), (6, 3452661), (9, 2301774), (18, 1150887), (19, 1090314), (27, 767258), (38, 545157), (54, 383629), (57, 363438), (61, 339606), (114, 181719), (122, 169803), (171, 121146), (183, 113202), (331, 62586), (342, 60573), (366, 56601), (513, 40382), (549, 37734), (662, 31293), (993, 20862), (1026, 20191), (1098, 18867), (1159, 17874), (1647, 12578), (1986, 10431), (2318, 8937), (2979, 6954), (3294, 6289), (3477, 5958)]