28378779

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{797}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 45045504

約数和(自身を除く): 16666725

約数列:

[1, 3, 11, 13, 33, 39, 83, 143, 249, 429, 797, 913, 1079, 2391, 2739, 3237, 8767, 10361, 11869, 26301, 31083, 35607, 66151, 113971, 198453, 341913, 727661, 859963, 2182983, 2579889, 9459593, 28378779]

約数ペア:

[(1, 28378779), (3, 9459593), (11, 2579889), (13, 2182983), (33, 859963), (39, 727661), (83, 341913), (143, 198453), (249, 113971), (429, 66151), (797, 35607), (913, 31083), (1079, 26301), (2391, 11869), (2739, 10361), (3237, 8767)]