20905798

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1\times {\mathrm{491}}^1$

素因数の和:903

約数の個数: 16

約数和(自身を含む): 32029200

約数和(自身を除く): 11123402

約数列:

[1, 2, 61, 122, 349, 491, 698, 982, 21289, 29951, 42578, 59902, 171359, 342718, 10452899, 20905798]

約数ペア:

[(1, 20905798), (2, 10452899), (61, 342718), (122, 171359), (349, 59902), (491, 42578), (698, 29951), (982, 21289)]