21729720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181081}}^1$

素因数の和:181095

約数の個数: 32

約数和(自身を含む): 65189520

約数和(自身を除く): 43459800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181081, 362162, 543243, 724324, 905405, 1086486, 1448648, 1810810, 2172972, 2716215, 3621620, 4345944, 5432430, 7243240, 10864860, 21729720]

約数ペア:

[(1, 21729720), (2, 10864860), (3, 7243240), (4, 5432430), (5, 4345944), (6, 3621620), (8, 2716215), (10, 2172972), (12, 1810810), (15, 1448648), (20, 1086486), (24, 905405), (30, 724324), (40, 543243), (60, 362162), (120, 181081)]