18962667

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:369

約数の個数: 40

約数和(自身を含む): 30735936

約数和(自身を除く): 11773269

約数列:

[1, 3, 9, 17, 27, 47, 51, 81, 141, 153, 293, 423, 459, 799, 879, 1269, 1377, 2397, 2637, 3807, 4981, 7191, 7911, 13771, 14943, 21573, 23733, 41313, 44829, 64719, 123939, 134487, 234107, 371817, 403461, 702321, 1115451, 2106963, 6320889, 18962667]

約数ペア:

[(1, 18962667), (3, 6320889), (9, 2106963), (17, 1115451), (27, 702321), (47, 403461), (51, 371817), (81, 234107), (141, 134487), (153, 123939), (293, 64719), (423, 44829), (459, 41313), (799, 23733), (879, 21573), (1269, 14943), (1377, 13771), (2397, 7911), (2637, 7191), (3807, 4981)]