19581978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{251051}}^1$

素因数の和:251069

約数の個数: 16

約数和(自身を含む): 42176736

約数和(自身を除く): 22594758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 251051, 502102, 753153, 1506306, 3263663, 6527326, 9790989, 19581978]

約数ペア:

[(1, 19581978), (2, 9790989), (3, 6527326), (6, 3263663), (13, 1506306), (26, 753153), (39, 502102), (78, 251051)]