21493305

素因数分解:

$3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4729}}^1$

素因数の和:4841

約数の個数: 24

約数和(自身を含む): 37631880

約数和(自身を除く): 16138575

約数列:

[1, 3, 5, 9, 15, 45, 101, 303, 505, 909, 1515, 4545, 4729, 14187, 23645, 42561, 70935, 212805, 477629, 1432887, 2388145, 4298661, 7164435, 21493305]

約数ペア:

[(1, 21493305), (3, 7164435), (5, 4298661), (9, 2388145), (15, 1432887), (45, 477629), (101, 212805), (303, 70935), (505, 42561), (909, 23645), (1515, 14187), (4545, 4729)]