20944329

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 33705984

約数和(自身を除く): 12761655

約数列:

[1, 3, 7, 21, 23, 69, 103, 161, 309, 421, 483, 721, 1263, 2163, 2369, 2947, 7107, 8841, 9683, 16583, 29049, 43363, 49749, 67781, 130089, 203343, 303541, 910623, 997349, 2992047, 6981443, 20944329]

約数ペア:

[(1, 20944329), (3, 6981443), (7, 2992047), (21, 997349), (23, 910623), (69, 303541), (103, 203343), (161, 130089), (309, 67781), (421, 49749), (483, 43363), (721, 29049), (1263, 16583), (2163, 9683), (2369, 8841), (2947, 7107)]