19988982

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{6571}}^1$

素因数の和:6605

約数の個数: 36

約数和(自身を含む): 46904364

約数和(自身を除く): 26915382

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 169, 234, 338, 507, 1014, 1521, 3042, 6571, 13142, 19713, 39426, 59139, 85423, 118278, 170846, 256269, 512538, 768807, 1110499, 1537614, 2220998, 3331497, 6662994, 9994491, 19988982]

約数ペア:

[(1, 19988982), (2, 9994491), (3, 6662994), (6, 3331497), (9, 2220998), (13, 1537614), (18, 1110499), (26, 768807), (39, 512538), (78, 256269), (117, 170846), (169, 118278), (234, 85423), (338, 59139), (507, 39426), (1014, 19713), (1521, 13142), (3042, 6571)]