21248181

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1229}}^1$

素因数の和:1365

約数の個数: 24

約数和(自身を含む): 32811480

約数和(自身を除く): 11563299

約数列:

[1, 3, 9, 17, 51, 113, 153, 339, 1017, 1229, 1921, 3687, 5763, 11061, 17289, 20893, 62679, 138877, 188037, 416631, 1249893, 2360909, 7082727, 21248181]

約数ペア:

[(1, 21248181), (3, 7082727), (9, 2360909), (17, 1249893), (51, 416631), (113, 188037), (153, 138877), (339, 62679), (1017, 20893), (1229, 17289), (1921, 11061), (3687, 5763)]