21000369740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{32377}}^1$

素因数の和:32547

約数の個数: 96

約数和(自身を含む): 52088690304

約数和(自身を除く): 31088320564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 113, 140, 164, 205, 226, 287, 410, 452, 565, 574, 791, 820, 1130, 1148, 1435, 1582, 2260, 2870, 3164, 3955, 4633, 5740, 7910, 9266, 15820, 18532, 23165, 32377, 32431, 46330, 64754, 64862, 92660, 129508, 129724, 161885, 162155, 226639, 323770, 324310, 453278, 647540, 648620, 906556, 1133195, 1327457, 2266390, 2654914, 3658601, 4532780, 5309828, 6637285, 7317202, 9292199, 13274570, 14634404, 18293005, 18584398, 25610207, 26549140, 36586010, 37168796, 46460995, 51220414, 73172020, 92921990, 102440828, 128051035, 150002641, 185843980, 256102070, 300005282, 512204140, 600010564, 750013205, 1050018487, 1500026410, 2100036974, 3000052820, 4200073948, 5250092435, 10500184870, 21000369740]

約数ペア:

[(1, 21000369740), (2, 10500184870), (4, 5250092435), (5, 4200073948), (7, 3000052820), (10, 2100036974), (14, 1500026410), (20, 1050018487), (28, 750013205), (35, 600010564), (41, 512204140), (70, 300005282), (82, 256102070), (113, 185843980), (140, 150002641), (164, 128051035), (205, 102440828), (226, 92921990), (287, 73172020), (410, 51220414), (452, 46460995), (565, 37168796), (574, 36586010), (791, 26549140), (820, 25610207), (1130, 18584398), (1148, 18293005), (1435, 14634404), (1582, 13274570), (2260, 9292199), (2870, 7317202), (3164, 6637285), (3955, 5309828), (4633, 4532780), (5740, 3658601), (7910, 2654914), (9266, 2266390), (15820, 1327457), (18532, 1133195), (23165, 906556), (32377, 648620), (32431, 647540), (46330, 453278), (64754, 324310), (64862, 323770), (92660, 226639), (129508, 162155), (129724, 161885)]