18720688

素因数分解:

$2^4\times 7^1\times {\mathrm{167149}}^1$

素因数の和:167164

約数の個数: 20

約数和(自身を含む): 41453200

約数和(自身を除く): 22732512

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 167149, 334298, 668596, 1170043, 1337192, 2340086, 2674384, 4680172, 9360344, 18720688]

約数ペア:

[(1, 18720688), (2, 9360344), (4, 4680172), (7, 2674384), (8, 2340086), (14, 1337192), (16, 1170043), (28, 668596), (56, 334298), (112, 167149)]