19977828

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{9851}}^1$

素因数の和:9884

約数の個数: 36

約数和(自身を含む): 50481648

約数和(自身を除く): 30503820

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 9851, 19702, 29553, 39404, 59106, 118212, 128063, 256126, 384189, 512252, 768378, 1536756, 1664819, 3329638, 4994457, 6659276, 9988914, 19977828]

約数ペア:

[(1, 19977828), (2, 9988914), (3, 6659276), (4, 4994457), (6, 3329638), (12, 1664819), (13, 1536756), (26, 768378), (39, 512252), (52, 384189), (78, 256126), (156, 128063), (169, 118212), (338, 59106), (507, 39404), (676, 29553), (1014, 19702), (2028, 9851)]