21473543

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 27955200

約数和(自身を除く): 6481657

約数列:

[1, 7, 13, 29, 79, 91, 103, 203, 377, 553, 721, 1027, 1339, 2291, 2639, 2987, 7189, 8137, 9373, 16037, 20909, 29783, 38831, 56959, 105781, 208481, 235973, 271817, 740467, 1651811, 3067649, 21473543]

約数ペア:

[(1, 21473543), (7, 3067649), (13, 1651811), (29, 740467), (79, 271817), (91, 235973), (103, 208481), (203, 105781), (377, 56959), (553, 38831), (721, 29783), (1027, 20909), (1339, 16037), (2291, 9373), (2639, 8137), (2987, 7189)]