21378448

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14683}}^1$

素因数の和:14711

約数の個数: 40

約数和(自身を含む): 50982848

約数和(自身を除く): 29604400

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14683, 29366, 58732, 102781, 117464, 190879, 205562, 234928, 381758, 411124, 763516, 822248, 1336153, 1527032, 1644496, 2672306, 3054064, 5344612, 10689224, 21378448]

約数ペア:

[(1, 21378448), (2, 10689224), (4, 5344612), (7, 3054064), (8, 2672306), (13, 1644496), (14, 1527032), (16, 1336153), (26, 822248), (28, 763516), (52, 411124), (56, 381758), (91, 234928), (104, 205562), (112, 190879), (182, 117464), (208, 102781), (364, 58732), (728, 29366), (1456, 14683)]