21048170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{359}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 24674710

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 41, 55, 65, 82, 110, 130, 143, 205, 286, 359, 410, 451, 533, 715, 718, 902, 1066, 1430, 1795, 2255, 2665, 3590, 3949, 4510, 4667, 5330, 5863, 7898, 9334, 11726, 14719, 19745, 23335, 29315, 29438, 39490, 46670, 51337, 58630, 73595, 102674, 147190, 161909, 191347, 256685, 323818, 382694, 513370, 809545, 956735, 1619090, 1913470, 2104817, 4209634, 10524085, 21048170]

約数ペア:

[(1, 21048170), (2, 10524085), (5, 4209634), (10, 2104817), (11, 1913470), (13, 1619090), (22, 956735), (26, 809545), (41, 513370), (55, 382694), (65, 323818), (82, 256685), (110, 191347), (130, 161909), (143, 147190), (205, 102674), (286, 73595), (359, 58630), (410, 51337), (451, 46670), (533, 39490), (715, 29438), (718, 29315), (902, 23335), (1066, 19745), (1430, 14719), (1795, 11726), (2255, 9334), (2665, 7898), (3590, 5863), (3949, 5330), (4510, 4667)]