19216665

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{307}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 36324288

約数和(自身を除く): 17107623

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 107, 117, 195, 307, 321, 535, 585, 921, 963, 1391, 1535, 1605, 2763, 3991, 4173, 4605, 4815, 6955, 11973, 12519, 13815, 19955, 20865, 32849, 35919, 59865, 62595, 98547, 164245, 179595, 295641, 427037, 492735, 1281111, 1478205, 2135185, 3843333, 6405555, 19216665]

約数ペア:

[(1, 19216665), (3, 6405555), (5, 3843333), (9, 2135185), (13, 1478205), (15, 1281111), (39, 492735), (45, 427037), (65, 295641), (107, 179595), (117, 164245), (195, 98547), (307, 62595), (321, 59865), (535, 35919), (585, 32849), (921, 20865), (963, 19955), (1391, 13815), (1535, 12519), (1605, 11973), (2763, 6955), (3991, 4815), (4173, 4605)]