20472998

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:561

約数の個数: 48

約数和(自身を含む): 40318560

約数和(自身を除く): 19845562

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 169, 182, 221, 238, 338, 442, 509, 1018, 1183, 1547, 2366, 2873, 3094, 3563, 5746, 6617, 7126, 8653, 13234, 17306, 20111, 40222, 46319, 60571, 86021, 92638, 112489, 121142, 172042, 224978, 602147, 787423, 1204294, 1462357, 1574846, 2924714, 10236499, 20472998]

約数ペア:

[(1, 20472998), (2, 10236499), (7, 2924714), (13, 1574846), (14, 1462357), (17, 1204294), (26, 787423), (34, 602147), (91, 224978), (119, 172042), (169, 121142), (182, 112489), (221, 92638), (238, 86021), (338, 60571), (442, 46319), (509, 40222), (1018, 20111), (1183, 17306), (1547, 13234), (2366, 8653), (2873, 7126), (3094, 6617), (3563, 5746)]