19690965

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 40734720

約数和(自身を除く): 21043755

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 67, 105, 135, 189, 201, 311, 315, 335, 469, 603, 933, 945, 1005, 1407, 1555, 1809, 2177, 2345, 2799, 3015, 4221, 4665, 6531, 7035, 8397, 9045, 10885, 12663, 13995, 19593, 20837, 21105, 32655, 41985, 58779, 62511, 63315, 97965, 104185, 145859, 187533, 293895, 312555, 437577, 562599, 729295, 937665, 1312731, 2187885, 2812995, 3938193, 6563655, 19690965]

約数ペア:

[(1, 19690965), (3, 6563655), (5, 3938193), (7, 2812995), (9, 2187885), (15, 1312731), (21, 937665), (27, 729295), (35, 562599), (45, 437577), (63, 312555), (67, 293895), (105, 187533), (135, 145859), (189, 104185), (201, 97965), (311, 63315), (315, 62511), (335, 58779), (469, 41985), (603, 32655), (933, 21105), (945, 20837), (1005, 19593), (1407, 13995), (1555, 12663), (1809, 10885), (2177, 9045), (2345, 8397), (2799, 7035), (3015, 6531), (4221, 4665)]