19802445

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{587}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 34376832

約数和(自身を除く): 14574387

約数列:

[1, 3, 5, 13, 15, 39, 65, 173, 195, 519, 587, 865, 1761, 2249, 2595, 2935, 6747, 7631, 8805, 11245, 22893, 33735, 38155, 101551, 114465, 304653, 507755, 1320163, 1523265, 3960489, 6600815, 19802445]

約数ペア:

[(1, 19802445), (3, 6600815), (5, 3960489), (13, 1523265), (15, 1320163), (39, 507755), (65, 304653), (173, 114465), (195, 101551), (519, 38155), (587, 33735), (865, 22893), (1761, 11245), (2249, 8805), (2595, 7631), (2935, 6747)]