19707435

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{577}}^1$

素因数の和:625

約数の個数: 64

約数和(自身を含む): 39951360

約数和(自身を除く): 20243925

約数列:

[1, 3, 5, 9, 11, 15, 23, 27, 33, 45, 55, 69, 99, 115, 135, 165, 207, 253, 297, 345, 495, 577, 621, 759, 1035, 1265, 1485, 1731, 2277, 2885, 3105, 3795, 5193, 6347, 6831, 8655, 11385, 13271, 15579, 19041, 25965, 31735, 34155, 39813, 57123, 66355, 77895, 95205, 119439, 145981, 171369, 199065, 285615, 358317, 437943, 597195, 729905, 856845, 1313829, 1791585, 2189715, 3941487, 6569145, 19707435]

約数ペア:

[(1, 19707435), (3, 6569145), (5, 3941487), (9, 2189715), (11, 1791585), (15, 1313829), (23, 856845), (27, 729905), (33, 597195), (45, 437943), (55, 358317), (69, 285615), (99, 199065), (115, 171369), (135, 145981), (165, 119439), (207, 95205), (253, 77895), (297, 66355), (345, 57123), (495, 39813), (577, 34155), (621, 31735), (759, 25965), (1035, 19041), (1265, 15579), (1485, 13271), (1731, 11385), (2277, 8655), (2885, 6831), (3105, 6347), (3795, 5193)]