21234430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{691}}^1$

素因数の和:1144

約数の個数: 32

約数和(自身を含む): 43845120

約数和(自身を除く): 22610690

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 439, 691, 878, 1382, 2195, 3073, 3455, 4390, 4837, 6146, 6910, 9674, 15365, 24185, 30730, 48370, 303349, 606698, 1516745, 2123443, 3033490, 4246886, 10617215, 21234430]

約数ペア:

[(1, 21234430), (2, 10617215), (5, 4246886), (7, 3033490), (10, 2123443), (14, 1516745), (35, 606698), (70, 303349), (439, 48370), (691, 30730), (878, 24185), (1382, 15365), (2195, 9674), (3073, 6910), (3455, 6146), (4390, 4837)]