20143459

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 24624000

約数和(自身を除く): 4480541

約数列:

[1, 7, 31, 49, 89, 149, 217, 623, 1043, 1519, 2759, 4361, 4619, 7301, 13261, 19313, 32333, 92827, 135191, 226331, 411091, 649789, 2877637, 20143459]

約数ペア:

[(1, 20143459), (7, 2877637), (31, 649789), (49, 411091), (89, 226331), (149, 135191), (217, 92827), (623, 32333), (1043, 19313), (1519, 13261), (2759, 7301), (4361, 4619)]