11921455

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 18960480

約数和(自身を除く): 7039025

約数列:

[1, 5, 7, 13, 19, 35, 49, 65, 91, 95, 133, 197, 245, 247, 455, 637, 665, 931, 985, 1235, 1379, 1729, 2561, 3185, 3743, 4655, 6895, 8645, 9653, 12103, 12805, 17927, 18715, 26201, 48265, 48659, 60515, 89635, 125489, 131005, 183407, 243295, 340613, 627445, 917035, 1703065, 2384291, 11921455]

約数ペア:

[(1, 11921455), (5, 2384291), (7, 1703065), (13, 917035), (19, 627445), (35, 340613), (49, 243295), (65, 183407), (91, 131005), (95, 125489), (133, 89635), (197, 60515), (245, 48659), (247, 48265), (455, 26201), (637, 18715), (665, 17927), (931, 12805), (985, 12103), (1235, 9653), (1379, 8645), (1729, 6895), (2561, 4655), (3185, 3743)]