18803356

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 39287808

約数和(自身を除く): 20484452

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 71, 142, 143, 284, 286, 463, 572, 781, 923, 926, 1562, 1846, 1852, 3124, 3692, 5093, 6019, 10153, 10186, 12038, 20306, 20372, 24076, 32873, 40612, 65746, 66209, 131492, 132418, 264836, 361603, 427349, 723206, 854698, 1446412, 1709396, 4700839, 9401678, 18803356]

約数ペア:

[(1, 18803356), (2, 9401678), (4, 4700839), (11, 1709396), (13, 1446412), (22, 854698), (26, 723206), (44, 427349), (52, 361603), (71, 264836), (142, 132418), (143, 131492), (284, 66209), (286, 65746), (463, 40612), (572, 32873), (781, 24076), (923, 20372), (926, 20306), (1562, 12038), (1846, 10186), (1852, 10153), (3124, 6019), (3692, 5093)]