861315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 1698816

約数和(自身を除く): 837501

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 631, 1365, 1893, 3155, 4417, 8203, 9465, 13251, 22085, 24609, 41015, 57421, 66255, 123045, 172263, 287105, 861315]

約数ペア:

[(1, 861315), (3, 287105), (5, 172263), (7, 123045), (13, 66255), (15, 57421), (21, 41015), (35, 24609), (39, 22085), (65, 13251), (91, 9465), (105, 8203), (195, 4417), (273, 3155), (455, 1893), (631, 1365)]