217872369

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{773}}^1$

素因数の和:879

約数の個数: 64

約数和(自身を含む): 384894720

約数和(自身を除く): 167022351

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 73, 99, 117, 143, 219, 297, 351, 429, 657, 773, 803, 949, 1287, 1971, 2319, 2409, 2847, 3861, 6957, 7227, 8503, 8541, 10049, 10439, 20871, 21681, 25509, 25623, 30147, 31317, 56429, 76527, 90441, 93951, 110539, 169287, 229581, 271323, 281853, 331617, 507861, 620719, 733577, 994851, 1523583, 1862157, 2200731, 2984553, 5586471, 6602193, 8069347, 16759413, 19806579, 24208041, 72624123, 217872369]

約数ペア:

[(1, 217872369), (3, 72624123), (9, 24208041), (11, 19806579), (13, 16759413), (27, 8069347), (33, 6602193), (39, 5586471), (73, 2984553), (99, 2200731), (117, 1862157), (143, 1523583), (219, 994851), (297, 733577), (351, 620719), (429, 507861), (657, 331617), (773, 281853), (803, 271323), (949, 229581), (1287, 169287), (1971, 110539), (2319, 93951), (2409, 90441), (2847, 76527), (3861, 56429), (6957, 31317), (7227, 30147), (8503, 25623), (8541, 25509), (10049, 21681), (10439, 20871)]