19903107

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{283}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 32389632

約数和(自身を除く): 12486525

約数列:

[1, 3, 7, 17, 21, 51, 119, 197, 283, 357, 591, 849, 1379, 1981, 3349, 4137, 4811, 5943, 10047, 14433, 23443, 33677, 55751, 70329, 101031, 167253, 390257, 947767, 1170771, 2843301, 6634369, 19903107]

約数ペア:

[(1, 19903107), (3, 6634369), (7, 2843301), (17, 1170771), (21, 947767), (51, 390257), (119, 167253), (197, 101031), (283, 70329), (357, 55751), (591, 33677), (849, 23443), (1379, 14433), (1981, 10047), (3349, 5943), (4137, 4811)]