161718909

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{547}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 258410496

約数和(自身を除く): 96691587

約数列:

[1, 3, 11, 17, 31, 33, 51, 93, 187, 289, 341, 527, 547, 561, 867, 1023, 1581, 1641, 3179, 5797, 6017, 8959, 9299, 9537, 16957, 17391, 18051, 26877, 27897, 50871, 98549, 102289, 158083, 186527, 288269, 295647, 306867, 474249, 559581, 864807, 1738913, 3170959, 4900573, 5216739, 9512877, 14701719, 53906303, 161718909]

約数ペア:

[(1, 161718909), (3, 53906303), (11, 14701719), (17, 9512877), (31, 5216739), (33, 4900573), (51, 3170959), (93, 1738913), (187, 864807), (289, 559581), (341, 474249), (527, 306867), (547, 295647), (561, 288269), (867, 186527), (1023, 158083), (1581, 102289), (1641, 98549), (3179, 50871), (5797, 27897), (6017, 26877), (8959, 18051), (9299, 17391), (9537, 16957)]