19280985

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{179}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12652455

約数列:

[1, 3, 5, 15, 43, 129, 167, 179, 215, 501, 537, 645, 835, 895, 2505, 2685, 7181, 7697, 21543, 23091, 29893, 35905, 38485, 89679, 107715, 115455, 149465, 448395, 1285399, 3856197, 6426995, 19280985]

約数ペア:

[(1, 19280985), (3, 6426995), (5, 3856197), (15, 1285399), (43, 448395), (129, 149465), (167, 115455), (179, 107715), (215, 89679), (501, 38485), (537, 35905), (645, 29893), (835, 23091), (895, 21543), (2505, 7697), (2685, 7181)]