21608704

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 47845952

約数和(自身を除く): 26237248

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 128, 151, 172, 208, 256, 302, 344, 416, 559, 604, 688, 832, 1118, 1208, 1376, 1664, 1963, 2236, 2416, 2752, 3328, 3926, 4472, 4832, 5504, 6493, 7852, 8944, 9664, 11008, 12986, 15704, 17888, 19328, 25972, 31408, 35776, 38656, 51944, 62816, 71552, 84409, 103888, 125632, 143104, 168818, 207776, 251264, 337636, 415552, 502528, 675272, 831104, 1350544, 1662208, 2701088, 5402176, 10804352, 21608704]

約数ペア:

[(1, 21608704), (2, 10804352), (4, 5402176), (8, 2701088), (13, 1662208), (16, 1350544), (26, 831104), (32, 675272), (43, 502528), (52, 415552), (64, 337636), (86, 251264), (104, 207776), (128, 168818), (151, 143104), (172, 125632), (208, 103888), (256, 84409), (302, 71552), (344, 62816), (416, 51944), (559, 38656), (604, 35776), (688, 31408), (832, 25972), (1118, 19328), (1208, 17888), (1376, 15704), (1664, 12986), (1963, 11008), (2236, 9664), (2416, 8944), (2752, 7852), (3328, 6493), (3926, 5504), (4472, 4832)]