18220664

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2689}}^1$

素因数の和:2724

約数の個数: 48

約数和(自身を含む): 42932400

約数和(自身を除く): 24711736

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 121, 154, 242, 308, 484, 616, 847, 968, 1694, 2689, 3388, 5378, 6776, 10756, 18823, 21512, 29579, 37646, 59158, 75292, 118316, 150584, 207053, 236632, 325369, 414106, 650738, 828212, 1301476, 1656424, 2277583, 2602952, 4555166, 9110332, 18220664]

約数ペア:

[(1, 18220664), (2, 9110332), (4, 4555166), (7, 2602952), (8, 2277583), (11, 1656424), (14, 1301476), (22, 828212), (28, 650738), (44, 414106), (56, 325369), (77, 236632), (88, 207053), (121, 150584), (154, 118316), (242, 75292), (308, 59158), (484, 37646), (616, 29579), (847, 21512), (968, 18823), (1694, 10756), (2689, 6776), (3388, 5378)]