19678295

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{709}}^1$

素因数の和:795

約数の個数: 32

約数和(自身を含む): 29581440

約数和(自身を除く): 9903145

約数列:

[1, 5, 7, 13, 35, 61, 65, 91, 305, 427, 455, 709, 793, 2135, 3545, 3965, 4963, 5551, 9217, 24815, 27755, 43249, 46085, 64519, 216245, 302743, 322595, 562237, 1513715, 2811185, 3935659, 19678295]

約数ペア:

[(1, 19678295), (5, 3935659), (7, 2811185), (13, 1513715), (35, 562237), (61, 322595), (65, 302743), (91, 216245), (305, 64519), (427, 46085), (455, 43249), (709, 27755), (793, 24815), (2135, 9217), (3545, 5551), (3965, 4963)]