21093788

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 40279680

約数和(自身を除く): 19185892

約数列:

[1, 2, 4, 29, 47, 53, 58, 73, 94, 106, 116, 146, 188, 212, 292, 1363, 1537, 2117, 2491, 2726, 3074, 3431, 3869, 4234, 4982, 5452, 6148, 6862, 7738, 8468, 9964, 13724, 15476, 72239, 99499, 112201, 144478, 181843, 198998, 224402, 288956, 363686, 397996, 448804, 727372, 5273447, 10546894, 21093788]

約数ペア:

[(1, 21093788), (2, 10546894), (4, 5273447), (29, 727372), (47, 448804), (53, 397996), (58, 363686), (73, 288956), (94, 224402), (106, 198998), (116, 181843), (146, 144478), (188, 112201), (212, 99499), (292, 72239), (1363, 15476), (1537, 13724), (2117, 9964), (2491, 8468), (2726, 7738), (3074, 6862), (3431, 6148), (3869, 5452), (4234, 4982)]