28229187

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{773}}^1$

素因数の和:867

約数の個数: 32

約数和(自身を含む): 45176832

約数和(自身を除く): 16947645

約数列:

[1, 3, 7, 21, 37, 47, 111, 141, 259, 329, 773, 777, 987, 1739, 2319, 5217, 5411, 12173, 16233, 28601, 36331, 36519, 85803, 108993, 200207, 254317, 600621, 762951, 1344247, 4032741, 9409729, 28229187]

約数ペア:

[(1, 28229187), (3, 9409729), (7, 4032741), (21, 1344247), (37, 762951), (47, 600621), (111, 254317), (141, 200207), (259, 108993), (329, 85803), (773, 36519), (777, 36331), (987, 28601), (1739, 16233), (2319, 12173), (5217, 5411)]