20664105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17891}}^1$

素因数の和:17917

約数の個数: 32

約数和(自身を含む): 41223168

約数和(自身を除く): 20559063

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17891, 53673, 89455, 125237, 196801, 268365, 375711, 590403, 626185, 984005, 1377607, 1878555, 2952015, 4132821, 6888035, 20664105]

約数ペア:

[(1, 20664105), (3, 6888035), (5, 4132821), (7, 2952015), (11, 1878555), (15, 1377607), (21, 984005), (33, 626185), (35, 590403), (55, 375711), (77, 268365), (105, 196801), (165, 125237), (231, 89455), (385, 53673), (1155, 17891)]