18858555

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4817}}^1$

素因数の和:4860

約数の個数: 32

約数和(自身を含む): 34689600

約数和(自身を除く): 15831045

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 4817, 14451, 24085, 43353, 72255, 130059, 139693, 216765, 419079, 650295, 698465, 1257237, 2095395, 3771711, 6286185, 18858555]

約数ペア:

[(1, 18858555), (3, 6286185), (5, 3771711), (9, 2095395), (15, 1257237), (27, 698465), (29, 650295), (45, 419079), (87, 216765), (135, 139693), (145, 130059), (261, 72255), (435, 43353), (783, 24085), (1305, 14451), (3915, 4817)]