20199562131

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{448013}}^1$

素因数の和:448155

約数の個数: 32

約数和(自身を含む): 32687101440

約数和(自身を除く): 12487539309

約数列:

[1, 3, 7, 19, 21, 57, 113, 133, 339, 399, 791, 2147, 2373, 6441, 15029, 45087, 448013, 1344039, 3136091, 8512247, 9408273, 25536741, 50625469, 59585729, 151876407, 178757187, 354378283, 961883911, 1063134849, 2885651733, 6733187377, 20199562131]

約数ペア:

[(1, 20199562131), (3, 6733187377), (7, 2885651733), (19, 1063134849), (21, 961883911), (57, 354378283), (113, 178757187), (133, 151876407), (339, 59585729), (399, 50625469), (791, 25536741), (2147, 9408273), (2373, 8512247), (6441, 3136091), (15029, 1344039), (45087, 448013)]