18804947889

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{263}}^1\times {\mathrm{20147}}^1$

素因数の和:20446

約数の個数: 48

約数和(自身を含む): 31148485632

約数和(自身を除く): 12343537743

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 263, 273, 507, 789, 1183, 1841, 3419, 3549, 5523, 10257, 20147, 23933, 44447, 60441, 71799, 133341, 141029, 261911, 311129, 423087, 785733, 933387, 1833377, 3404843, 5298661, 5500131, 10214529, 15895983, 23833901, 37090627, 68882593, 71501703, 111271881, 206647779, 482178151, 895473709, 1446534453, 2686421127, 6268315963, 18804947889]

約数ペア:

[(1, 18804947889), (3, 6268315963), (7, 2686421127), (13, 1446534453), (21, 895473709), (39, 482178151), (91, 206647779), (169, 111271881), (263, 71501703), (273, 68882593), (507, 37090627), (789, 23833901), (1183, 15895983), (1841, 10214529), (3419, 5500131), (3549, 5298661), (5523, 3404843), (10257, 1833377), (20147, 933387), (23933, 785733), (44447, 423087), (60441, 311129), (71799, 261911), (133341, 141029)]