21216624

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:327

約数の個数: 120

約数和(自身を含む): 65110416

約数和(自身を除く): 43893792

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 16, 22, 24, 26, 33, 39, 44, 48, 52, 66, 78, 88, 104, 121, 132, 143, 156, 176, 208, 242, 264, 281, 286, 312, 363, 429, 484, 528, 562, 572, 624, 726, 843, 858, 968, 1124, 1144, 1452, 1573, 1686, 1716, 1936, 2248, 2288, 2904, 3091, 3146, 3372, 3432, 3653, 4496, 4719, 5808, 6182, 6292, 6744, 6864, 7306, 9273, 9438, 10959, 12364, 12584, 13488, 14612, 18546, 18876, 21918, 24728, 25168, 29224, 34001, 37092, 37752, 40183, 43836, 49456, 58448, 68002, 74184, 75504, 80366, 87672, 102003, 120549, 136004, 148368, 160732, 175344, 204006, 241098, 272008, 321464, 408012, 442013, 482196, 544016, 642928, 816024, 884026, 964392, 1326039, 1632048, 1768052, 1928784, 2652078, 3536104, 5304156, 7072208, 10608312, 21216624]

約数ペア:

[(1, 21216624), (2, 10608312), (3, 7072208), (4, 5304156), (6, 3536104), (8, 2652078), (11, 1928784), (12, 1768052), (13, 1632048), (16, 1326039), (22, 964392), (24, 884026), (26, 816024), (33, 642928), (39, 544016), (44, 482196), (48, 442013), (52, 408012), (66, 321464), (78, 272008), (88, 241098), (104, 204006), (121, 175344), (132, 160732), (143, 148368), (156, 136004), (176, 120549), (208, 102003), (242, 87672), (264, 80366), (281, 75504), (286, 74184), (312, 68002), (363, 58448), (429, 49456), (484, 43836), (528, 40183), (562, 37752), (572, 37092), (624, 34001), (726, 29224), (843, 25168), (858, 24728), (968, 21918), (1124, 18876), (1144, 18546), (1452, 14612), (1573, 13488), (1686, 12584), (1716, 12364), (1936, 10959), (2248, 9438), (2288, 9273), (2904, 7306), (3091, 6864), (3146, 6744), (3372, 6292), (3432, 6182), (3653, 5808), (4496, 4719)]