221431509

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{11903}}^1$

素因数の和:11978

約数の個数: 32

約数和(自身を含む): 359976960

約数和(自身を除く): 138545451

約数列:

[1, 3, 9, 13, 27, 39, 53, 117, 159, 351, 477, 689, 1431, 2067, 6201, 11903, 18603, 35709, 107127, 154739, 321381, 464217, 630859, 1392651, 1892577, 4177953, 5677731, 8201167, 17033193, 24603501, 73810503, 221431509]

約数ペア:

[(1, 221431509), (3, 73810503), (9, 24603501), (13, 17033193), (27, 8201167), (39, 5677731), (53, 4177953), (117, 1892577), (159, 1392651), (351, 630859), (477, 464217), (689, 321381), (1431, 154739), (2067, 107127), (6201, 35709), (11903, 18603)]