221704784

素因数分解:

$2^4\times 7^1\times {\mathrm{1979507}}^1$

素因数の和:1979522

約数の個数: 20

約数和(自身を含む): 490917984

約数和(自身を除く): 269213200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1979507, 3959014, 7918028, 13856549, 15836056, 27713098, 31672112, 55426196, 110852392, 221704784]

約数ペア:

[(1, 221704784), (2, 110852392), (4, 55426196), (7, 31672112), (8, 27713098), (14, 15836056), (16, 13856549), (28, 7918028), (56, 3959014), (112, 1979507)]