16742439

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 29652480

約数和(自身を除く): 12910041

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 71, 133, 171, 197, 213, 399, 497, 591, 639, 1197, 1349, 1379, 1491, 1773, 3743, 4047, 4137, 4473, 9443, 11229, 12141, 12411, 13987, 26201, 28329, 33687, 41961, 78603, 84987, 97909, 125883, 235809, 265753, 293727, 797259, 881181, 1860271, 2391777, 5580813, 16742439]

約数ペア:

[(1, 16742439), (3, 5580813), (7, 2391777), (9, 1860271), (19, 881181), (21, 797259), (57, 293727), (63, 265753), (71, 235809), (133, 125883), (171, 97909), (197, 84987), (213, 78603), (399, 41961), (497, 33687), (591, 28329), (639, 26201), (1197, 13987), (1349, 12411), (1379, 12141), (1491, 11229), (1773, 9443), (3743, 4473), (4047, 4137)]