1999515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 3709440

約数和(自身を除く): 1709925

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 137, 139, 411, 417, 685, 695, 959, 973, 2055, 2085, 2877, 2919, 4795, 4865, 14385, 14595, 19043, 57129, 95215, 133301, 285645, 399903, 666505, 1999515]

約数ペア:

[(1, 1999515), (3, 666505), (5, 399903), (7, 285645), (15, 133301), (21, 95215), (35, 57129), (105, 19043), (137, 14595), (139, 14385), (411, 4865), (417, 4795), (685, 2919), (695, 2877), (959, 2085), (973, 2055)]