20123809839

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{887}}^1\times {\mathrm{2749}}^1$

素因数の和:3780

約数の個数: 48

約数和(自身を含む): 33523776000

約数和(自身を除く): 13399966161

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 887, 917, 1179, 2661, 2749, 2751, 6209, 7983, 8247, 8253, 18627, 19243, 24741, 55881, 57729, 116197, 173187, 348591, 360119, 813379, 1045773, 1080357, 2438363, 2440137, 2520833, 3241071, 7315089, 7320411, 7562499, 17068541, 21945267, 22687497, 51205623, 153616869, 319425553, 958276659, 2235978871, 2874829977, 6707936613, 20123809839]

約数ペア:

[(1, 20123809839), (3, 6707936613), (7, 2874829977), (9, 2235978871), (21, 958276659), (63, 319425553), (131, 153616869), (393, 51205623), (887, 22687497), (917, 21945267), (1179, 17068541), (2661, 7562499), (2749, 7320411), (2751, 7315089), (6209, 3241071), (7983, 2520833), (8247, 2440137), (8253, 2438363), (18627, 1080357), (19243, 1045773), (24741, 813379), (55881, 360119), (57729, 348591), (116197, 173187)]