21039664

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{57173}}^1$

素因数の和:57204

約数の個数: 20

約数和(自身を含む): 42537456

約数和(自身を除く): 21497792

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 57173, 114346, 228692, 457384, 914768, 1314979, 2629958, 5259916, 10519832, 21039664]

約数ペア:

[(1, 21039664), (2, 10519832), (4, 5259916), (8, 2629958), (16, 1314979), (23, 914768), (46, 457384), (92, 228692), (184, 114346), (368, 57173)]