21318584

素因数分解:

$2^3\times 7^1\times {\mathrm{617}}^2$

素因数の和:1247

約数の個数: 24

約数和(自身を含む): 45756840

約数和(自身を除く): 24438256

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 617, 1234, 2468, 4319, 4936, 8638, 17276, 34552, 380689, 761378, 1522756, 2664823, 3045512, 5329646, 10659292, 21318584]

約数ペア:

[(1, 21318584), (2, 10659292), (4, 5329646), (7, 3045512), (8, 2664823), (14, 1522756), (28, 761378), (56, 380689), (617, 34552), (1234, 17276), (2468, 8638), (4319, 4936)]