21269486

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{19231}}^1$

素因数の和:19319

約数の個数: 16

約数和(自身を含む): 36925440

約数和(自身を除く): 15655954

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 19231, 38462, 134617, 269234, 1519249, 3038498, 10634743, 21269486]

約数ペア:

[(1, 21269486), (2, 10634743), (7, 3038498), (14, 1519249), (79, 269234), (158, 134617), (553, 38462), (1106, 19231)]