7976409

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19991}}^1$

素因数の和:20020

約数の個数: 16

約数和(自身を含む): 12794880

約数和(自身を除く): 4818471

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 19991, 59973, 139937, 379829, 419811, 1139487, 2658803, 7976409]

約数ペア:

[(1, 7976409), (3, 2658803), (7, 1139487), (19, 419811), (21, 379829), (57, 139937), (133, 59973), (399, 19991)]