21195927

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:467

約数の個数: 24

約数和(自身を含む): 31449600

約数和(自身を除く): 10253673

約数列:

[1, 3, 9, 59, 177, 179, 223, 531, 537, 669, 1611, 2007, 10561, 13157, 31683, 39471, 39917, 95049, 118413, 119751, 359253, 2355103, 7065309, 21195927]

約数ペア:

[(1, 21195927), (3, 7065309), (9, 2355103), (59, 359253), (177, 119751), (179, 118413), (223, 95049), (531, 39917), (537, 39471), (669, 31683), (1611, 13157), (2007, 10561)]