21121568

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{50773}}^1$

素因数の和:50796

約数の個数: 24

約数和(自身を含む): 44782668

約数和(自身を除く): 23661100

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 50773, 101546, 203092, 406184, 660049, 812368, 1320098, 1624736, 2640196, 5280392, 10560784, 21121568]

約数ペア:

[(1, 21121568), (2, 10560784), (4, 5280392), (8, 2640196), (13, 1624736), (16, 1320098), (26, 812368), (32, 660049), (52, 406184), (104, 203092), (208, 101546), (416, 50773)]