19400445

素因数分解:

$3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1097}}^1$

素因数の和:1242

約数の個数: 32

約数和(自身を含む): 34784640

約数和(自身を除く): 15384195

約数列:

[1, 3, 5, 9, 15, 27, 45, 131, 135, 393, 655, 1097, 1179, 1965, 3291, 3537, 5485, 5895, 9873, 16455, 17685, 29619, 49365, 143707, 148095, 431121, 718535, 1293363, 2155605, 3880089, 6466815, 19400445]

約数ペア:

[(1, 19400445), (3, 6466815), (5, 3880089), (9, 2155605), (15, 1293363), (27, 718535), (45, 431121), (131, 148095), (135, 143707), (393, 49365), (655, 29619), (1097, 17685), (1179, 16455), (1965, 9873), (3291, 5895), (3537, 5485)]