78395919

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3221}}^1$

素因数の和:3311

約数の個数: 32

約数和(自身を含む): 127848960

約数和(自身を除く): 49453041

約数列:

[1, 3, 7, 19, 21, 57, 61, 133, 183, 399, 427, 1159, 1281, 3221, 3477, 8113, 9663, 22547, 24339, 61199, 67641, 183597, 196481, 428393, 589443, 1285179, 1375367, 3733139, 4126101, 11199417, 26131973, 78395919]

約数ペア:

[(1, 78395919), (3, 26131973), (7, 11199417), (19, 4126101), (21, 3733139), (57, 1375367), (61, 1285179), (133, 589443), (183, 428393), (399, 196481), (427, 183597), (1159, 67641), (1281, 61199), (3221, 24339), (3477, 22547), (8113, 9663)]