20278300917

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{192013}}^1$

素因数の和:192177

約数の個数: 32

約数和(自身を含む): 31852818432

約数和(自身を除く): 11574517515

約数列:

[1, 3, 7, 21, 47, 107, 141, 321, 329, 749, 987, 2247, 5029, 15087, 35203, 105609, 192013, 576039, 1344091, 4032273, 9024611, 20545391, 27073833, 61636173, 63172277, 143817737, 189516831, 431453211, 965633377, 2896900131, 6759433639, 20278300917]

約数ペア:

[(1, 20278300917), (3, 6759433639), (7, 2896900131), (21, 965633377), (47, 431453211), (107, 189516831), (141, 143817737), (321, 63172277), (329, 61636173), (749, 27073833), (987, 20545391), (2247, 9024611), (5029, 4032273), (15087, 1344091), (35203, 576039), (105609, 192013)]