19934538

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{255571}}^1$

素因数の和:255589

約数の個数: 16

約数和(自身を含む): 42936096

約数和(自身を除く): 23001558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 255571, 511142, 766713, 1533426, 3322423, 6644846, 9967269, 19934538]

約数ペア:

[(1, 19934538), (2, 9967269), (3, 6644846), (6, 3322423), (13, 1533426), (26, 766713), (39, 511142), (78, 255571)]