388179987

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{20693}}^1$

素因数の和:20759

約数の個数: 24

約数和(自身を含む): 575624304

約数和(自身を除く): 187444317

約数列:

[1, 3, 13, 37, 39, 111, 169, 481, 507, 1443, 6253, 18759, 20693, 62079, 269009, 765641, 807027, 2296923, 3497117, 9953333, 10491351, 29859999, 129393329, 388179987]

約数ペア:

[(1, 388179987), (3, 129393329), (13, 29859999), (37, 10491351), (39, 9953333), (111, 3497117), (169, 2296923), (481, 807027), (507, 765641), (1443, 269009), (6253, 62079), (18759, 20693)]