19853775

素因数分解:

$3^3\times 5^2\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:525

約数の個数: 48

約数和(自身を含む): 37100800

約数和(自身を除く): 17247025

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 67, 75, 135, 201, 225, 335, 439, 603, 675, 1005, 1317, 1675, 1809, 2195, 3015, 3951, 5025, 6585, 9045, 10975, 11853, 15075, 19755, 29413, 32925, 45225, 59265, 88239, 98775, 147065, 264717, 296325, 441195, 735325, 794151, 1323585, 2205975, 3970755, 6617925, 19853775]

約数ペア:

[(1, 19853775), (3, 6617925), (5, 3970755), (9, 2205975), (15, 1323585), (25, 794151), (27, 735325), (45, 441195), (67, 296325), (75, 264717), (135, 147065), (201, 98775), (225, 88239), (335, 59265), (439, 45225), (603, 32925), (675, 29413), (1005, 19755), (1317, 15075), (1675, 11853), (1809, 10975), (2195, 9045), (3015, 6585), (3951, 5025)]