21582603

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 37779456

約数和(自身を除く): 16196853

約数列:

[1, 3, 7, 9, 21, 31, 43, 63, 93, 129, 217, 257, 279, 301, 387, 651, 771, 903, 1333, 1799, 1953, 2313, 2709, 3999, 5397, 7967, 9331, 11051, 11997, 16191, 23901, 27993, 33153, 55769, 71703, 77357, 83979, 99459, 167307, 232071, 342581, 501921, 696213, 1027743, 2398067, 3083229, 7194201, 21582603]

約数ペア:

[(1, 21582603), (3, 7194201), (7, 3083229), (9, 2398067), (21, 1027743), (31, 696213), (43, 501921), (63, 342581), (93, 232071), (129, 167307), (217, 99459), (257, 83979), (279, 77357), (301, 71703), (387, 55769), (651, 33153), (771, 27993), (903, 23901), (1333, 16191), (1799, 11997), (1953, 11051), (2313, 9331), (2709, 7967), (3999, 5397)]