21849335

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 29756160

約数和(自身を除く): 7906825

約数列:

[1, 5, 17, 19, 83, 85, 95, 163, 323, 415, 815, 1411, 1577, 1615, 2771, 3097, 7055, 7885, 13529, 13855, 15485, 26809, 52649, 67645, 134045, 229993, 257051, 263245, 1149965, 1285255, 4369867, 21849335]

約数ペア:

[(1, 21849335), (5, 4369867), (17, 1285255), (19, 1149965), (83, 263245), (85, 257051), (95, 229993), (163, 134045), (323, 67645), (415, 52649), (815, 26809), (1411, 15485), (1577, 13855), (1615, 13529), (2771, 7885), (3097, 7055)]