19822491

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 33473440

約数和(自身を除く): 13650949

約数列:

[1, 3, 9, 13, 19, 37, 39, 57, 111, 117, 171, 241, 247, 333, 481, 703, 723, 741, 1443, 2109, 2169, 2223, 3133, 4329, 4579, 6327, 8917, 9139, 9399, 13737, 26751, 27417, 28197, 41211, 59527, 80253, 82251, 115921, 169423, 178581, 347763, 508269, 535743, 1043289, 1524807, 2202499, 6607497, 19822491]

約数ペア:

[(1, 19822491), (3, 6607497), (9, 2202499), (13, 1524807), (19, 1043289), (37, 535743), (39, 508269), (57, 347763), (111, 178581), (117, 169423), (171, 115921), (241, 82251), (247, 80253), (333, 59527), (481, 41211), (703, 28197), (723, 27417), (741, 26751), (1443, 13737), (2109, 9399), (2169, 9139), (2223, 8917), (3133, 6327), (4329, 4579)]