21336720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88903}}^1$

素因数の和:88919

約数の個数: 40

約数和(自身を含む): 66144576

約数和(自身を除く): 44807856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88903, 177806, 266709, 355612, 444515, 533418, 711224, 889030, 1066836, 1333545, 1422448, 1778060, 2133672, 2667090, 3556120, 4267344, 5334180, 7112240, 10668360, 21336720]

約数ペア:

[(1, 21336720), (2, 10668360), (3, 7112240), (4, 5334180), (5, 4267344), (6, 3556120), (8, 2667090), (10, 2133672), (12, 1778060), (15, 1422448), (16, 1333545), (20, 1066836), (24, 889030), (30, 711224), (40, 533418), (48, 444515), (60, 355612), (80, 266709), (120, 177806), (240, 88903)]