16781445

素因数分解:

$3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{631}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 30032640

約数和(自身を除く): 13251195

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 197, 591, 631, 985, 1773, 1893, 2955, 3155, 5319, 5679, 8865, 9465, 17037, 26595, 28395, 85185, 124307, 372921, 621535, 1118763, 1864605, 3356289, 5593815, 16781445]

約数ペア:

[(1, 16781445), (3, 5593815), (5, 3356289), (9, 1864605), (15, 1118763), (27, 621535), (45, 372921), (135, 124307), (197, 85185), (591, 28395), (631, 26595), (985, 17037), (1773, 9465), (1893, 8865), (2955, 5679), (3155, 5319)]