21468484

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{643}}^1$

素因数の和:1155

約数の個数: 24

約数和(自身を含む): 39922848

約数和(自身を除く): 18454364

約数列:

[1, 2, 4, 17, 34, 68, 491, 643, 982, 1286, 1964, 2572, 8347, 10931, 16694, 21862, 33388, 43724, 315713, 631426, 1262852, 5367121, 10734242, 21468484]

約数ペア:

[(1, 21468484), (2, 10734242), (4, 5367121), (17, 1262852), (34, 631426), (68, 315713), (491, 43724), (643, 33388), (982, 21862), (1286, 16694), (1964, 10931), (2572, 8347)]