21103964

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{14221}}^1$

素因数の和:14285

約数の個数: 24

約数和(自身を含む): 43007328

約数和(自身を除く): 21903364

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 14221, 28442, 56884, 99547, 199094, 398188, 753713, 1507426, 3014852, 5275991, 10551982, 21103964]

約数ペア:

[(1, 21103964), (2, 10551982), (4, 5275991), (7, 3014852), (14, 1507426), (28, 753713), (53, 398188), (106, 199094), (212, 99547), (371, 56884), (742, 28442), (1484, 14221)]