21371584

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1511}}^1$

素因数の和:1553

約数の個数: 56

約数和(自身を含む): 48390048

約数和(自身を除く): 27018464

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1511, 1768, 3022, 3536, 6044, 7072, 12088, 14144, 19643, 24176, 25687, 39286, 48352, 51374, 78572, 96704, 102748, 157144, 205496, 314288, 333931, 410992, 628576, 667862, 821984, 1257152, 1335724, 1643968, 2671448, 5342896, 10685792, 21371584]

約数ペア:

[(1, 21371584), (2, 10685792), (4, 5342896), (8, 2671448), (13, 1643968), (16, 1335724), (17, 1257152), (26, 821984), (32, 667862), (34, 628576), (52, 410992), (64, 333931), (68, 314288), (104, 205496), (136, 157144), (208, 102748), (221, 96704), (272, 78572), (416, 51374), (442, 48352), (544, 39286), (832, 25687), (884, 24176), (1088, 19643), (1511, 14144), (1768, 12088), (3022, 7072), (3536, 6044)]