21668504

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 96

約数和(自身を含む): 50595840

約数和(自身を除く): 28927336

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 31, 44, 47, 52, 62, 88, 94, 104, 124, 143, 169, 188, 248, 286, 338, 341, 376, 403, 517, 572, 611, 676, 682, 806, 1034, 1144, 1222, 1352, 1364, 1457, 1612, 1859, 2068, 2444, 2728, 2914, 3224, 3718, 4136, 4433, 4888, 5239, 5828, 6721, 7436, 7943, 8866, 10478, 11656, 13442, 14872, 15886, 16027, 17732, 18941, 20956, 26884, 31772, 32054, 35464, 37882, 41912, 53768, 57629, 63544, 64108, 75764, 87373, 115258, 128216, 151528, 174746, 208351, 230516, 246233, 349492, 416702, 461032, 492466, 698984, 833404, 984932, 1666808, 1969864, 2708563, 5417126, 10834252, 21668504]

約数ペア:

[(1, 21668504), (2, 10834252), (4, 5417126), (8, 2708563), (11, 1969864), (13, 1666808), (22, 984932), (26, 833404), (31, 698984), (44, 492466), (47, 461032), (52, 416702), (62, 349492), (88, 246233), (94, 230516), (104, 208351), (124, 174746), (143, 151528), (169, 128216), (188, 115258), (248, 87373), (286, 75764), (338, 64108), (341, 63544), (376, 57629), (403, 53768), (517, 41912), (572, 37882), (611, 35464), (676, 32054), (682, 31772), (806, 26884), (1034, 20956), (1144, 18941), (1222, 17732), (1352, 16027), (1364, 15886), (1457, 14872), (1612, 13442), (1859, 11656), (2068, 10478), (2444, 8866), (2728, 7943), (2914, 7436), (3224, 6721), (3718, 5828), (4136, 5239), (4433, 4888)]