189819553

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{241}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 243378432

約数和(自身を除く): 53558879

約数列:

[1, 7, 11, 53, 77, 193, 241, 371, 583, 1351, 1687, 2123, 2651, 4081, 10229, 12773, 14861, 18557, 46513, 71603, 89411, 112519, 140503, 325591, 511643, 787633, 983521, 2465189, 3581501, 17256323, 27117079, 189819553]

約数ペア:

[(1, 189819553), (7, 27117079), (11, 17256323), (53, 3581501), (77, 2465189), (193, 983521), (241, 787633), (371, 511643), (583, 325591), (1351, 140503), (1687, 112519), (2123, 89411), (2651, 71603), (4081, 46513), (10229, 18557), (12773, 14861)]