21802065

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{241}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 36195456

約数和(自身を除く): 14393391

約数列:

[1, 3, 5, 15, 37, 111, 163, 185, 241, 489, 555, 723, 815, 1205, 2445, 3615, 6031, 8917, 18093, 26751, 30155, 39283, 44585, 90465, 117849, 133755, 196415, 589245, 1453471, 4360413, 7267355, 21802065]

約数ペア:

[(1, 21802065), (3, 7267355), (5, 4360413), (15, 1453471), (37, 589245), (111, 196415), (163, 133755), (185, 117849), (241, 90465), (489, 44585), (555, 39283), (723, 30155), (815, 26751), (1205, 18093), (2445, 8917), (3615, 6031)]