21199828

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{1093}}^1$

素因数の和:1483

約数の個数: 24

約数和(自身を含む): 40097288

約数和(自身を除く): 18897460

約数列:

[1, 2, 4, 13, 26, 52, 373, 746, 1093, 1492, 2186, 4372, 4849, 9698, 14209, 19396, 28418, 56836, 407689, 815378, 1630756, 5299957, 10599914, 21199828]

約数ペア:

[(1, 21199828), (2, 10599914), (4, 5299957), (13, 1630756), (26, 815378), (52, 407689), (373, 56836), (746, 28418), (1093, 19396), (1492, 14209), (2186, 9698), (4372, 4849)]