20330715

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 33445440

約数和(自身を除く): 13114725

約数列:

[1, 3, 5, 15, 89, 97, 157, 267, 291, 445, 471, 485, 785, 1335, 1455, 2355, 8633, 13973, 15229, 25899, 41919, 43165, 45687, 69865, 76145, 129495, 209595, 228435, 1355381, 4066143, 6776905, 20330715]

約数ペア:

[(1, 20330715), (3, 6776905), (5, 4066143), (15, 1355381), (89, 228435), (97, 209595), (157, 129495), (267, 76145), (291, 69865), (445, 45687), (471, 43165), (485, 41919), (785, 25899), (1335, 15229), (1455, 13973), (2355, 8633)]