209322819

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1$

素因数の和:417

約数の個数: 64

約数和(自身を含む): 347258880

約数和(自身を除く): 137936061

約数列:

[1, 3, 9, 17, 27, 31, 47, 51, 93, 141, 153, 279, 313, 423, 459, 527, 799, 837, 939, 1269, 1457, 1581, 2397, 2817, 4371, 4743, 5321, 7191, 8451, 9703, 13113, 14229, 14711, 15963, 21573, 24769, 29109, 39339, 44133, 47889, 74307, 87327, 132399, 143667, 164951, 222921, 250087, 261981, 397197, 456041, 494853, 668763, 750261, 1368123, 1484559, 2250783, 4104369, 4453677, 6752349, 7752697, 12313107, 23258091, 69774273, 209322819]

約数ペア:

[(1, 209322819), (3, 69774273), (9, 23258091), (17, 12313107), (27, 7752697), (31, 6752349), (47, 4453677), (51, 4104369), (93, 2250783), (141, 1484559), (153, 1368123), (279, 750261), (313, 668763), (423, 494853), (459, 456041), (527, 397197), (799, 261981), (837, 250087), (939, 222921), (1269, 164951), (1457, 143667), (1581, 132399), (2397, 87327), (2817, 74307), (4371, 47889), (4743, 44133), (5321, 39339), (7191, 29109), (8451, 24769), (9703, 21573), (13113, 15963), (14229, 14711)]