19641825

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4157}}^1$

素因数の和:4183

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 21605535

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4157, 4725, 12471, 20785, 29099, 37413, 62355, 87297, 103925, 112239, 145495, 187065, 261891, 311775, 436485, 561195, 727475, 785673, 935325, 1309455, 2182425, 2805975, 3928365, 6547275, 19641825]

約数ペア:

[(1, 19641825), (3, 6547275), (5, 3928365), (7, 2805975), (9, 2182425), (15, 1309455), (21, 935325), (25, 785673), (27, 727475), (35, 561195), (45, 436485), (63, 311775), (75, 261891), (105, 187065), (135, 145495), (175, 112239), (189, 103925), (225, 87297), (315, 62355), (525, 37413), (675, 29099), (945, 20785), (1575, 12471), (4157, 4725)]