2001105

素因数分解:

$3^8\times 5^1\times {\mathrm{61}}^1$

素因数の和:90

約数の個数: 36

約数和(自身を含む): 3660852

約数和(自身を除く): 1659747

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 243, 305, 405, 549, 729, 915, 1215, 1647, 2187, 2745, 3645, 4941, 6561, 8235, 10935, 14823, 24705, 32805, 44469, 74115, 133407, 222345, 400221, 667035, 2001105]

約数ペア:

[(1, 2001105), (3, 667035), (5, 400221), (9, 222345), (15, 133407), (27, 74115), (45, 44469), (61, 32805), (81, 24705), (135, 14823), (183, 10935), (243, 8235), (305, 6561), (405, 4941), (549, 3645), (729, 2745), (915, 2187), (1215, 1647)]