21940552

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 20153528

約数列:

[1, 2, 4, 8, 83, 166, 173, 191, 332, 346, 382, 664, 692, 764, 1384, 1528, 14359, 15853, 28718, 31706, 33043, 57436, 63412, 66086, 114872, 126824, 132172, 264344, 2742569, 5485138, 10970276, 21940552]

約数ペア:

[(1, 21940552), (2, 10970276), (4, 5485138), (8, 2742569), (83, 264344), (166, 132172), (173, 126824), (191, 114872), (332, 66086), (346, 63412), (382, 57436), (664, 33043), (692, 31706), (764, 28718), (1384, 15853), (1528, 14359)]