209319803

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{653}}^1$

素因数の和:875

約数の個数: 32

約数和(自身を含む): 274240512

約数和(自身を除く): 64920709

約数列:

[1, 7, 11, 23, 77, 161, 181, 253, 653, 1267, 1771, 1991, 4163, 4571, 7183, 13937, 15019, 29141, 45793, 50281, 105133, 118193, 165209, 320551, 827351, 1156463, 1300123, 2718439, 9100861, 19029073, 29902829, 209319803]

約数ペア:

[(1, 209319803), (7, 29902829), (11, 19029073), (23, 9100861), (77, 2718439), (161, 1300123), (181, 1156463), (253, 827351), (653, 320551), (1267, 165209), (1771, 118193), (1991, 105133), (4163, 50281), (4571, 45793), (7183, 29141), (13937, 15019)]