19365723

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:425

約数の個数: 40

約数和(自身を含む): 31833648

約数和(自身を除く): 12467925

約数列:

[1, 3, 9, 13, 27, 39, 53, 81, 117, 159, 347, 351, 477, 689, 1041, 1053, 1431, 2067, 3123, 4293, 4511, 6201, 9369, 13533, 18391, 18603, 28107, 40599, 55173, 55809, 121797, 165519, 239083, 365391, 496557, 717249, 1489671, 2151747, 6455241, 19365723]

約数ペア:

[(1, 19365723), (3, 6455241), (9, 2151747), (13, 1489671), (27, 717249), (39, 496557), (53, 365391), (81, 239083), (117, 165519), (159, 121797), (347, 55809), (351, 55173), (477, 40599), (689, 28107), (1041, 18603), (1053, 18391), (1431, 13533), (2067, 9369), (3123, 6201), (4293, 4511)]