20126295

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{353}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 40203072

約数和(自身を除く): 20076777

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 181, 315, 353, 543, 905, 1059, 1267, 1629, 1765, 2471, 2715, 3177, 3801, 5295, 6335, 7413, 8145, 11403, 12355, 15885, 19005, 22239, 37065, 57015, 63893, 111195, 191679, 319465, 447251, 575037, 958395, 1341753, 2236255, 2875185, 4025259, 6708765, 20126295]

約数ペア:

[(1, 20126295), (3, 6708765), (5, 4025259), (7, 2875185), (9, 2236255), (15, 1341753), (21, 958395), (35, 575037), (45, 447251), (63, 319465), (105, 191679), (181, 111195), (315, 63893), (353, 57015), (543, 37065), (905, 22239), (1059, 19005), (1267, 15885), (1629, 12355), (1765, 11403), (2471, 8145), (2715, 7413), (3177, 6335), (3801, 5295)]