391163241

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{2213}}^1$

素因数の和:2685

約数の個数: 32

約数和(自身を含む): 629130240

約数和(自身を除く): 237966999

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 443, 1329, 2213, 3101, 6639, 8417, 9303, 15491, 25251, 42047, 46473, 58919, 126141, 176757, 294329, 882987, 980359, 2941077, 6862513, 18626821, 20587539, 55880463, 130387747, 391163241]

約数ペア:

[(1, 391163241), (3, 130387747), (7, 55880463), (19, 20587539), (21, 18626821), (57, 6862513), (133, 2941077), (399, 980359), (443, 882987), (1329, 294329), (2213, 176757), (3101, 126141), (6639, 58919), (8417, 46473), (9303, 42047), (15491, 25251)]