1581219978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{20272051}}^1$

素因数の和:20272069

約数の個数: 16

約数和(自身を含む): 3405704736

約数和(自身を除く): 1824484758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 20272051, 40544102, 60816153, 121632306, 263536663, 527073326, 790609989, 1581219978]

約数ペア:

[(1, 1581219978), (2, 790609989), (3, 527073326), (6, 263536663), (13, 121632306), (26, 60816153), (39, 40544102), (78, 20272051)]