21150928

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42643}}^1$

素因数の和:42682

約数の個数: 20

約数和(自身を含む): 42302848

約数和(自身を除く): 21151920

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42643, 85286, 170572, 341144, 682288, 1321933, 2643866, 5287732, 10575464, 21150928]

約数ペア:

[(1, 21150928), (2, 10575464), (4, 5287732), (8, 2643866), (16, 1321933), (31, 682288), (62, 341144), (124, 170572), (248, 85286), (496, 42643)]