21969825

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{5527}}^1$

素因数の和:5593

約数の個数: 24

約数和(自身を含む): 37015488

約数和(自身を除く): 15045663

約数列:

[1, 3, 5, 15, 25, 53, 75, 159, 265, 795, 1325, 3975, 5527, 16581, 27635, 82905, 138175, 292931, 414525, 878793, 1464655, 4393965, 7323275, 21969825]

約数ペア:

[(1, 21969825), (3, 7323275), (5, 4393965), (15, 1464655), (25, 878793), (53, 414525), (75, 292931), (159, 138175), (265, 82905), (795, 27635), (1325, 16581), (3975, 5527)]