1990562917

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{5099}}^1$

素因数の和:5401

約数の個数: 24

約数和(自身を含む): 2400019200

約数和(自身を除く): 409456283

約数列:

[1, 7, 31, 49, 217, 257, 1519, 1799, 5099, 7967, 12593, 35693, 55769, 158069, 249851, 390383, 1106483, 1310443, 7745381, 9173101, 40623733, 64211707, 284366131, 1990562917]

約数ペア:

[(1, 1990562917), (7, 284366131), (31, 64211707), (49, 40623733), (217, 9173101), (257, 7745381), (1519, 1310443), (1799, 1106483), (5099, 390383), (7967, 249851), (12593, 158069), (35693, 55769)]