639767534

素因数分解:

$2^1\times 7^1\times {\mathrm{821}}^1\times {\mathrm{55661}}^1$

素因数の和:56491

約数の個数: 16

約数和(自身を含む): 1098099936

約数和(自身を除く): 458332402

約数列:

[1, 2, 7, 14, 821, 1642, 5747, 11494, 55661, 111322, 389627, 779254, 45697681, 91395362, 319883767, 639767534]

約数ペア:

[(1, 639767534), (2, 319883767), (7, 91395362), (14, 45697681), (821, 779254), (1642, 389627), (5747, 111322), (11494, 55661)]