21231180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39317}}^1$

素因数の和:39335

約数の個数: 48

約数和(自身を含む): 66054240

約数和(自身を除く): 44823060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39317, 78634, 117951, 157268, 196585, 235902, 353853, 393170, 471804, 589755, 707706, 786340, 1061559, 1179510, 1415412, 1769265, 2123118, 2359020, 3538530, 4246236, 5307795, 7077060, 10615590, 21231180]

約数ペア:

[(1, 21231180), (2, 10615590), (3, 7077060), (4, 5307795), (5, 4246236), (6, 3538530), (9, 2359020), (10, 2123118), (12, 1769265), (15, 1415412), (18, 1179510), (20, 1061559), (27, 786340), (30, 707706), (36, 589755), (45, 471804), (54, 393170), (60, 353853), (90, 235902), (108, 196585), (135, 157268), (180, 117951), (270, 78634), (540, 39317)]