18781236

素因数分解:

$2^2\times 3^2\times {\mathrm{401}}^1\times {\mathrm{1301}}^1$

素因数の和:1712

約数の個数: 36

約数和(自身を含む): 47629764

約数和(自身を除く): 28848528

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 401, 802, 1203, 1301, 1604, 2406, 2602, 3609, 3903, 4812, 5204, 7218, 7806, 11709, 14436, 15612, 23418, 46836, 521701, 1043402, 1565103, 2086804, 3130206, 4695309, 6260412, 9390618, 18781236]

約数ペア:

[(1, 18781236), (2, 9390618), (3, 6260412), (4, 4695309), (6, 3130206), (9, 2086804), (12, 1565103), (18, 1043402), (36, 521701), (401, 46836), (802, 23418), (1203, 15612), (1301, 14436), (1604, 11709), (2406, 7806), (2602, 7218), (3609, 5204), (3903, 4812)]