19773585

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{593}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 20143215

約数列:

[1, 3, 5, 9, 13, 15, 19, 27, 39, 45, 57, 65, 95, 117, 135, 171, 195, 247, 285, 351, 513, 585, 593, 741, 855, 1235, 1755, 1779, 2223, 2565, 2965, 3705, 5337, 6669, 7709, 8895, 11115, 11267, 16011, 23127, 26685, 33345, 33801, 38545, 56335, 69381, 80055, 101403, 115635, 146471, 169005, 208143, 304209, 346905, 439413, 507015, 732355, 1040715, 1318239, 1521045, 2197065, 3954717, 6591195, 19773585]

約数ペア:

[(1, 19773585), (3, 6591195), (5, 3954717), (9, 2197065), (13, 1521045), (15, 1318239), (19, 1040715), (27, 732355), (39, 507015), (45, 439413), (57, 346905), (65, 304209), (95, 208143), (117, 169005), (135, 146471), (171, 115635), (195, 101403), (247, 80055), (285, 69381), (351, 56335), (513, 38545), (585, 33801), (593, 33345), (741, 26685), (855, 23127), (1235, 16011), (1755, 11267), (1779, 11115), (2223, 8895), (2565, 7709), (2965, 6669), (3705, 5337)]