21691604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1171}}^1$

素因数の和:1607

約数の個数: 24

約数和(自身を含む): 41545056

約数和(自身を除く): 19853452

約数列:

[1, 2, 4, 11, 22, 44, 421, 842, 1171, 1684, 2342, 4631, 4684, 9262, 12881, 18524, 25762, 51524, 492991, 985982, 1971964, 5422901, 10845802, 21691604]

約数ペア:

[(1, 21691604), (2, 10845802), (4, 5422901), (11, 1971964), (22, 985982), (44, 492991), (421, 51524), (842, 25762), (1171, 18524), (1684, 12881), (2342, 9262), (4631, 4684)]