20871904

素因数分解:

$2^5\times {\mathrm{557}}^1\times {\mathrm{1171}}^1$

素因数の和:1738

約数の個数: 24

約数和(自身を含む): 41200488

約数和(自身を除く): 20328584

約数列:

[1, 2, 4, 8, 16, 32, 557, 1114, 1171, 2228, 2342, 4456, 4684, 8912, 9368, 17824, 18736, 37472, 652247, 1304494, 2608988, 5217976, 10435952, 20871904]

約数ペア:

[(1, 20871904), (2, 10435952), (4, 5217976), (8, 2608988), (16, 1304494), (32, 652247), (557, 37472), (1114, 18736), (1171, 17824), (2228, 9368), (2342, 8912), (4456, 4684)]