29903209

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 34975360

約数和(自身を除く): 5072151

約数列:

[1, 7, 73, 139, 421, 511, 973, 2947, 10147, 30733, 58519, 71029, 215131, 409633, 4271887, 29903209]

約数ペア:

[(1, 29903209), (7, 4271887), (73, 409633), (139, 215131), (421, 71029), (511, 58519), (973, 30733), (2947, 10147)]