1390851

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1$

素因数の和:253

約数の個数: 40

約数和(自身を含む): 2601984

約数和(自身を除く): 1211133

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 223, 231, 297, 567, 669, 693, 891, 1561, 2007, 2079, 2453, 4683, 6021, 6237, 7359, 14049, 17171, 18063, 22077, 42147, 51513, 66231, 126441, 154539, 198693, 463617, 1390851]

約数ペア:

[(1, 1390851), (3, 463617), (7, 198693), (9, 154539), (11, 126441), (21, 66231), (27, 51513), (33, 42147), (63, 22077), (77, 18063), (81, 17171), (99, 14049), (189, 7359), (223, 6237), (231, 6021), (297, 4683), (567, 2453), (669, 2079), (693, 2007), (891, 1561)]