21075480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{58543}}^1$

素因数の和:58560

約数の個数: 48

約数和(自身を含む): 68496480

約数和(自身を除く): 47421000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 58543, 117086, 175629, 234172, 292715, 351258, 468344, 526887, 585430, 702516, 878145, 1053774, 1170860, 1405032, 1756290, 2107548, 2341720, 2634435, 3512580, 4215096, 5268870, 7025160, 10537740, 21075480]

約数ペア:

[(1, 21075480), (2, 10537740), (3, 7025160), (4, 5268870), (5, 4215096), (6, 3512580), (8, 2634435), (9, 2341720), (10, 2107548), (12, 1756290), (15, 1405032), (18, 1170860), (20, 1053774), (24, 878145), (30, 702516), (36, 585430), (40, 526887), (45, 468344), (60, 351258), (72, 292715), (90, 234172), (120, 175629), (180, 117086), (360, 58543)]