19898055

素因数分解:

$3^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:179

約数の個数: 56

約数和(自身を含む): 36829728

約数和(自身を除く): 16931673

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 103, 135, 159, 243, 265, 309, 405, 477, 515, 729, 795, 927, 1215, 1431, 1545, 2385, 2781, 3645, 4293, 4635, 5459, 7155, 8343, 12879, 13905, 16377, 21465, 25029, 27295, 38637, 41715, 49131, 64395, 75087, 81885, 125145, 147393, 193185, 245655, 375435, 442179, 736965, 1326537, 2210895, 3979611, 6632685, 19898055]

約数ペア:

[(1, 19898055), (3, 6632685), (5, 3979611), (9, 2210895), (15, 1326537), (27, 736965), (45, 442179), (53, 375435), (81, 245655), (103, 193185), (135, 147393), (159, 125145), (243, 81885), (265, 75087), (309, 64395), (405, 49131), (477, 41715), (515, 38637), (729, 27295), (795, 25029), (927, 21465), (1215, 16377), (1431, 13905), (1545, 12879), (2385, 8343), (2781, 7155), (3645, 5459), (4293, 4635)]