21246544

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1979}}^1$

素因数の和:2059

約数の個数: 40

約数和(自身を含む): 45666720

約数和(自身を除く): 24420176

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 61, 88, 122, 176, 244, 488, 671, 976, 1342, 1979, 2684, 3958, 5368, 7916, 10736, 15832, 21769, 31664, 43538, 87076, 120719, 174152, 241438, 348304, 482876, 965752, 1327909, 1931504, 2655818, 5311636, 10623272, 21246544]

約数ペア:

[(1, 21246544), (2, 10623272), (4, 5311636), (8, 2655818), (11, 1931504), (16, 1327909), (22, 965752), (44, 482876), (61, 348304), (88, 241438), (122, 174152), (176, 120719), (244, 87076), (488, 43538), (671, 31664), (976, 21769), (1342, 15832), (1979, 10736), (2684, 7916), (3958, 5368)]