18357705

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:471

約数の個数: 64

約数和(自身を含む): 36460800

約数和(自身を除く): 18103095

約数列:

[1, 3, 5, 9, 15, 17, 19, 27, 45, 51, 57, 85, 95, 135, 153, 171, 255, 285, 323, 421, 459, 513, 765, 855, 969, 1263, 1615, 2105, 2295, 2565, 2907, 3789, 4845, 6315, 7157, 7999, 8721, 11367, 14535, 18945, 21471, 23997, 35785, 39995, 43605, 56835, 64413, 71991, 107355, 119985, 135983, 193239, 215973, 322065, 359955, 407949, 679915, 966195, 1079865, 1223847, 2039745, 3671541, 6119235, 18357705]

約数ペア:

[(1, 18357705), (3, 6119235), (5, 3671541), (9, 2039745), (15, 1223847), (17, 1079865), (19, 966195), (27, 679915), (45, 407949), (51, 359955), (57, 322065), (85, 215973), (95, 193239), (135, 135983), (153, 119985), (171, 107355), (255, 71991), (285, 64413), (323, 56835), (421, 43605), (459, 39995), (513, 35785), (765, 23997), (855, 21471), (969, 18945), (1263, 14535), (1615, 11367), (2105, 8721), (2295, 7999), (2565, 7157), (2907, 6315), (3789, 4845)]