19974534

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2731}}^1$

素因数の和:2812

約数の個数: 32

約数和(自身を含む): 42488064

約数和(自身を除く): 22513530

約数列:

[1, 2, 3, 6, 23, 46, 53, 69, 106, 138, 159, 318, 1219, 2438, 2731, 3657, 5462, 7314, 8193, 16386, 62813, 125626, 144743, 188439, 289486, 376878, 434229, 868458, 3329089, 6658178, 9987267, 19974534]

約数ペア:

[(1, 19974534), (2, 9987267), (3, 6658178), (6, 3329089), (23, 868458), (46, 434229), (53, 376878), (69, 289486), (106, 188439), (138, 144743), (159, 125626), (318, 62813), (1219, 16386), (2438, 8193), (2731, 7314), (3657, 5462)]