9891987

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 16051200

約数和(自身を除く): 6159213

約数列:

[1, 3, 7, 21, 29, 37, 87, 111, 203, 259, 439, 609, 777, 1073, 1317, 3073, 3219, 7511, 9219, 12731, 16243, 22533, 38193, 48729, 89117, 113701, 267351, 341103, 471047, 1413141, 3297329, 9891987]

約数ペア:

[(1, 9891987), (3, 3297329), (7, 1413141), (21, 471047), (29, 341103), (37, 267351), (87, 113701), (111, 89117), (203, 48729), (259, 38193), (439, 22533), (609, 16243), (777, 12731), (1073, 9219), (1317, 7511), (3073, 3219)]