1261355451

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{349}}^1\times {\mathrm{389}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 1790880000

約数和(自身を除く): 529524549

約数列:

[1, 3, 19, 57, 163, 349, 389, 489, 1047, 1167, 3097, 6631, 7391, 9291, 19893, 22173, 56887, 63407, 135761, 170661, 190221, 407283, 1080853, 1204733, 2579459, 3242559, 3614199, 7738377, 22129043, 66387129, 420451817, 1261355451]

約数ペア:

[(1, 1261355451), (3, 420451817), (19, 66387129), (57, 22129043), (163, 7738377), (349, 3614199), (389, 3242559), (489, 2579459), (1047, 1204733), (1167, 1080853), (3097, 407283), (6631, 190221), (7391, 170661), (9291, 135761), (19893, 63407), (22173, 56887)]