19489899

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 30820608

約数和(自身を除く): 11330709

約数列:

[1, 3, 11, 13, 33, 39, 143, 181, 251, 429, 543, 753, 1991, 2353, 2761, 3263, 5973, 7059, 8283, 9789, 25883, 35893, 45431, 77649, 107679, 136293, 499741, 590603, 1499223, 1771809, 6496633, 19489899]

約数ペア:

[(1, 19489899), (3, 6496633), (11, 1771809), (13, 1499223), (33, 590603), (39, 499741), (143, 136293), (181, 107679), (251, 77649), (429, 45431), (543, 35893), (753, 25883), (1991, 9789), (2353, 8283), (2761, 7059), (3263, 5973)]