18118845

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 32752512

約数和(自身を除く): 14633667

約数列:

[1, 3, 5, 9, 15, 45, 53, 71, 107, 159, 213, 265, 321, 355, 477, 535, 639, 795, 963, 1065, 1605, 2385, 3195, 3763, 4815, 5671, 7597, 11289, 17013, 18815, 22791, 28355, 33867, 37985, 51039, 56445, 68373, 85065, 113955, 169335, 255195, 341865, 402641, 1207923, 2013205, 3623769, 6039615, 18118845]

約数ペア:

[(1, 18118845), (3, 6039615), (5, 3623769), (9, 2013205), (15, 1207923), (45, 402641), (53, 341865), (71, 255195), (107, 169335), (159, 113955), (213, 85065), (265, 68373), (321, 56445), (355, 51039), (477, 37985), (535, 33867), (639, 28355), (795, 22791), (963, 18815), (1065, 17013), (1605, 11289), (2385, 7597), (3195, 5671), (3763, 4815)]