21420644

素因数分解:

$2^2\times 7^2\times {\mathrm{293}}^1\times {\mathrm{373}}^1$

素因数の和:684

約数の個数: 36

約数和(自身を含む): 43872444

約数和(自身を除く): 22451800

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 293, 373, 586, 746, 1172, 1492, 2051, 2611, 4102, 5222, 8204, 10444, 14357, 18277, 28714, 36554, 57428, 73108, 109289, 218578, 437156, 765023, 1530046, 3060092, 5355161, 10710322, 21420644]

約数ペア:

[(1, 21420644), (2, 10710322), (4, 5355161), (7, 3060092), (14, 1530046), (28, 765023), (49, 437156), (98, 218578), (196, 109289), (293, 73108), (373, 57428), (586, 36554), (746, 28714), (1172, 18277), (1492, 14357), (2051, 10444), (2611, 8204), (4102, 5222)]