21000643235

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6829}}^1$

素因数の和:6909

約数の個数: 96

約数和(自身を含む): 32963656320

約数和(自身を除く): 11963013085

約数列:

[1, 5, 11, 13, 17, 23, 55, 65, 85, 115, 121, 143, 187, 221, 253, 299, 391, 605, 715, 935, 1105, 1265, 1495, 1573, 1955, 2057, 2431, 2783, 3289, 4301, 5083, 6829, 7865, 10285, 12155, 13915, 16445, 21505, 25415, 26741, 34145, 36179, 47311, 55913, 75119, 88777, 116093, 133705, 157067, 180895, 236555, 279565, 375595, 443885, 580465, 615043, 785335, 826309, 976547, 1277023, 1509209, 1727737, 2041871, 2670139, 3075215, 4131545, 4882735, 6385115, 7546045, 8638685, 10209355, 10742017, 13350695, 14047253, 16601299, 19005107, 22460581, 29371529, 34711807, 53710085, 70236265, 83006495, 95025535, 112302905, 146857645, 173559035, 182614289, 247066391, 323086819, 381829877, 913071445, 1235331955, 1615434095, 1909149385, 4200128647, 21000643235]

約数ペア:

[(1, 21000643235), (5, 4200128647), (11, 1909149385), (13, 1615434095), (17, 1235331955), (23, 913071445), (55, 381829877), (65, 323086819), (85, 247066391), (115, 182614289), (121, 173559035), (143, 146857645), (187, 112302905), (221, 95025535), (253, 83006495), (299, 70236265), (391, 53710085), (605, 34711807), (715, 29371529), (935, 22460581), (1105, 19005107), (1265, 16601299), (1495, 14047253), (1573, 13350695), (1955, 10742017), (2057, 10209355), (2431, 8638685), (2783, 7546045), (3289, 6385115), (4301, 4882735), (5083, 4131545), (6829, 3075215), (7865, 2670139), (10285, 2041871), (12155, 1727737), (13915, 1509209), (16445, 1277023), (21505, 976547), (25415, 826309), (26741, 785335), (34145, 615043), (36179, 580465), (47311, 443885), (55913, 375595), (75119, 279565), (88777, 236555), (116093, 180895), (133705, 157067)]