20154078009

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{670261}}^1$

素因数の和:670537

約数の個数: 24

約数和(自身を含む): 31472822472

約数和(自身を除く): 11318744463

約数列:

[1, 3, 9, 13, 39, 117, 257, 771, 2313, 3341, 10023, 30069, 670261, 2010783, 6032349, 8713393, 26140179, 78420537, 172257077, 516771231, 1550313693, 2239342001, 6718026003, 20154078009]

約数ペア:

[(1, 20154078009), (3, 6718026003), (9, 2239342001), (13, 1550313693), (39, 516771231), (117, 172257077), (257, 78420537), (771, 26140179), (2313, 8713393), (3341, 6032349), (10023, 2010783), (30069, 670261)]