21169545

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1427}}^1$

素因数の和:1501

約数の個数: 32

約数和(自身を含む): 36191232

約数和(自身を除く): 15021687

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 1427, 2967, 4281, 4945, 7135, 14835, 21405, 32821, 61361, 98463, 164105, 184083, 306805, 492315, 920415, 1411303, 4233909, 7056515, 21169545]

約数ペア:

[(1, 21169545), (3, 7056515), (5, 4233909), (15, 1411303), (23, 920415), (43, 492315), (69, 306805), (115, 184083), (129, 164105), (215, 98463), (345, 61361), (645, 32821), (989, 21405), (1427, 14835), (2967, 7135), (4281, 4945)]