21365955

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36523}}^1$

素因数の和:36547

約数の個数: 24

約数和(自身を含む): 39884208

約数和(自身を除く): 18518253

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 36523, 109569, 182615, 328707, 474799, 547845, 1424397, 1643535, 2373995, 4273191, 7121985, 21365955]

約数ペア:

[(1, 21365955), (3, 7121985), (5, 4273191), (9, 2373995), (13, 1643535), (15, 1424397), (39, 547845), (45, 474799), (65, 328707), (117, 182615), (195, 109569), (585, 36523)]