20487285

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5003}}^1$

素因数の和:5034

約数の個数: 48

約数和(自身を含む): 43714944

約数和(自身を除く): 23227659

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 5003, 15009, 25015, 35021, 45027, 65039, 75045, 105063, 175105, 195117, 225135, 315189, 325195, 455273, 525315, 585351, 975585, 1365819, 1575945, 2276365, 2926755, 4097457, 6829095, 20487285]

約数ペア:

[(1, 20487285), (3, 6829095), (5, 4097457), (7, 2926755), (9, 2276365), (13, 1575945), (15, 1365819), (21, 975585), (35, 585351), (39, 525315), (45, 455273), (63, 325195), (65, 315189), (91, 225135), (105, 195117), (117, 175105), (195, 105063), (273, 75045), (315, 65039), (455, 45027), (585, 35021), (819, 25015), (1365, 15009), (4095, 5003)]