19213804

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{659}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 34760880

約数和(自身を除く): 15547076

約数列:

[1, 2, 4, 37, 74, 148, 197, 394, 659, 788, 1318, 2636, 7289, 14578, 24383, 29156, 48766, 97532, 129823, 259646, 519292, 4803451, 9606902, 19213804]

約数ペア:

[(1, 19213804), (2, 9606902), (4, 4803451), (37, 519292), (74, 259646), (148, 129823), (197, 97532), (394, 48766), (659, 29156), (788, 24383), (1318, 14578), (2636, 7289)]