21463533

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 38787840

約数和(自身を除く): 17324307

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 73, 91, 117, 219, 273, 359, 511, 657, 819, 949, 1077, 1533, 2513, 2847, 3231, 4599, 4667, 6643, 7539, 8541, 14001, 19929, 22617, 26207, 32669, 42003, 59787, 78621, 98007, 183449, 235863, 294021, 340691, 550347, 1022073, 1651041, 2384837, 3066219, 7154511, 21463533]

約数ペア:

[(1, 21463533), (3, 7154511), (7, 3066219), (9, 2384837), (13, 1651041), (21, 1022073), (39, 550347), (63, 340691), (73, 294021), (91, 235863), (117, 183449), (219, 98007), (273, 78621), (359, 59787), (511, 42003), (657, 32669), (819, 26207), (949, 22617), (1077, 19929), (1533, 14001), (2513, 8541), (2847, 7539), (3231, 6643), (4599, 4667)]