21293588

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{643}}^1$

素因数の和:1151

約数の個数: 24

約数和(自身を含む): 39598272

約数和(自身を除く): 18304684

約数列:

[1, 2, 4, 17, 34, 68, 487, 643, 974, 1286, 1948, 2572, 8279, 10931, 16558, 21862, 33116, 43724, 313141, 626282, 1252564, 5323397, 10646794, 21293588]

約数ペア:

[(1, 21293588), (2, 10646794), (4, 5323397), (17, 1252564), (34, 626282), (68, 313141), (487, 43724), (643, 33116), (974, 21862), (1286, 16558), (1948, 10931), (2572, 8279)]