21785985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{223}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 41094144

約数和(自身を除く): 19308159

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 167, 195, 223, 501, 585, 669, 835, 1115, 1503, 2007, 2171, 2505, 2899, 3345, 6513, 7515, 8697, 10035, 10855, 14495, 19539, 26091, 32565, 37241, 43485, 97695, 111723, 130455, 186205, 335169, 484133, 558615, 1452399, 1675845, 2420665, 4357197, 7261995, 21785985]

約数ペア:

[(1, 21785985), (3, 7261995), (5, 4357197), (9, 2420665), (13, 1675845), (15, 1452399), (39, 558615), (45, 484133), (65, 335169), (117, 186205), (167, 130455), (195, 111723), (223, 97695), (501, 43485), (585, 37241), (669, 32565), (835, 26091), (1115, 19539), (1503, 14495), (2007, 10855), (2171, 10035), (2505, 8697), (2899, 7515), (3345, 6513)]