21165876

素因数分解:

$2^2\times 3^2\times {\mathrm{163}}^1\times {\mathrm{3607}}^1$

素因数の和:3780

約数の個数: 36

約数和(自身を含む): 53845792

約数和(自身を除く): 32679916

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 163, 326, 489, 652, 978, 1467, 1956, 2934, 3607, 5868, 7214, 10821, 14428, 21642, 32463, 43284, 64926, 129852, 587941, 1175882, 1763823, 2351764, 3527646, 5291469, 7055292, 10582938, 21165876]

約数ペア:

[(1, 21165876), (2, 10582938), (3, 7055292), (4, 5291469), (6, 3527646), (9, 2351764), (12, 1763823), (18, 1175882), (36, 587941), (163, 129852), (326, 64926), (489, 43284), (652, 32463), (978, 21642), (1467, 14428), (1956, 10821), (2934, 7214), (3607, 5868)]