20471409

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6131}}^1$

素因数の和:6197

約数の個数: 24

約数和(自身を含む): 34437312

約数和(自身を除く): 13965903

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 6131, 18393, 42917, 55179, 128751, 324943, 386253, 974829, 2274601, 2924487, 6823803, 20471409]

約数ペア:

[(1, 20471409), (3, 6823803), (7, 2924487), (9, 2274601), (21, 974829), (53, 386253), (63, 324943), (159, 128751), (371, 55179), (477, 42917), (1113, 18393), (3339, 6131)]