19561269

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{907}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 32542720

約数和(自身を除く): 12981451

約数列:

[1, 3, 7, 13, 21, 39, 79, 91, 237, 273, 553, 907, 1027, 1659, 2721, 3081, 6349, 7189, 11791, 19047, 21567, 35373, 71653, 82537, 214959, 247611, 501571, 931489, 1504713, 2794467, 6520423, 19561269]

約数ペア:

[(1, 19561269), (3, 6520423), (7, 2794467), (13, 1504713), (21, 931489), (39, 501571), (79, 247611), (91, 214959), (237, 82537), (273, 71653), (553, 35373), (907, 21567), (1027, 19047), (1659, 11791), (2721, 7189), (3081, 6349)]