21815692425

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^2\times {\mathrm{113}}^1\times {\mathrm{2969}}^1$

素因数の和:3132

約数の個数: 108

約数和(自身を含む): 41889456180

約数和(自身を除く): 20073763755

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 113, 153, 225, 255, 289, 339, 425, 565, 765, 867, 1017, 1275, 1445, 1695, 1921, 2601, 2825, 2969, 3825, 4335, 5085, 5763, 7225, 8475, 8907, 9605, 13005, 14845, 17289, 21675, 25425, 26721, 28815, 32657, 44535, 48025, 50473, 65025, 74225, 86445, 97971, 133605, 144075, 151419, 163285, 222675, 252365, 293913, 335497, 432225, 454257, 489855, 668025, 757095, 816425, 858041, 1006491, 1261825, 1469565, 1677485, 2271285, 2449275, 2574123, 3019473, 3785475, 4290205, 5032455, 5703449, 7347825, 7722369, 8387425, 11356425, 12870615, 15097365, 17110347, 21451025, 25162275, 28517245, 38611845, 51331041, 64353075, 75486825, 85551735, 96958633, 142586225, 193059225, 256655205, 290875899, 427758675, 484793165, 872627697, 1283276025, 1454379495, 2423965825, 4363138485, 7271897475, 21815692425]

約数ペア:

[(1, 21815692425), (3, 7271897475), (5, 4363138485), (9, 2423965825), (15, 1454379495), (17, 1283276025), (25, 872627697), (45, 484793165), (51, 427758675), (75, 290875899), (85, 256655205), (113, 193059225), (153, 142586225), (225, 96958633), (255, 85551735), (289, 75486825), (339, 64353075), (425, 51331041), (565, 38611845), (765, 28517245), (867, 25162275), (1017, 21451025), (1275, 17110347), (1445, 15097365), (1695, 12870615), (1921, 11356425), (2601, 8387425), (2825, 7722369), (2969, 7347825), (3825, 5703449), (4335, 5032455), (5085, 4290205), (5763, 3785475), (7225, 3019473), (8475, 2574123), (8907, 2449275), (9605, 2271285), (13005, 1677485), (14845, 1469565), (17289, 1261825), (21675, 1006491), (25425, 858041), (26721, 816425), (28815, 757095), (32657, 668025), (44535, 489855), (48025, 454257), (50473, 432225), (65025, 335497), (74225, 293913), (86445, 252365), (97971, 222675), (133605, 163285), (144075, 151419)]