638763723

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{10243}}^1$

素因数の和:10316

約数の個数: 36

約数和(自身を含む): 1023559992

約数和(自身を除く): 384796269

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 169, 369, 507, 533, 1521, 1599, 4797, 6929, 10243, 20787, 30729, 62361, 92187, 133159, 399477, 419963, 1198431, 1259889, 1731067, 3779667, 5193201, 5459519, 15579603, 16378557, 49135671, 70973747, 212921241, 638763723]

約数ペア:

[(1, 638763723), (3, 212921241), (9, 70973747), (13, 49135671), (39, 16378557), (41, 15579603), (117, 5459519), (123, 5193201), (169, 3779667), (369, 1731067), (507, 1259889), (533, 1198431), (1521, 419963), (1599, 399477), (4797, 133159), (6929, 92187), (10243, 62361), (20787, 30729)]