657181329

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{20849}}^1$

素因数の和:20957

約数の個数: 32

約数和(自身を含む): 1067520000

約数和(自身を除く): 410338671

約数列:

[1, 3, 7, 19, 21, 57, 79, 133, 237, 399, 553, 1501, 1659, 4503, 10507, 20849, 31521, 62547, 145943, 396131, 437829, 1188393, 1647071, 2772917, 4941213, 8318751, 11529497, 31294349, 34588491, 93883047, 219060443, 657181329]

約数ペア:

[(1, 657181329), (3, 219060443), (7, 93883047), (19, 34588491), (21, 31294349), (57, 11529497), (79, 8318751), (133, 4941213), (237, 2772917), (399, 1647071), (553, 1188393), (1501, 437829), (1659, 396131), (4503, 145943), (10507, 62547), (20849, 31521)]