20558615

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{797}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 31256064

約数和(自身を除く): 10697449

約数列:

[1, 5, 7, 11, 35, 55, 67, 77, 335, 385, 469, 737, 797, 2345, 3685, 3985, 5159, 5579, 8767, 25795, 27895, 43835, 53399, 61369, 266995, 306845, 373793, 587389, 1868965, 2936945, 4111723, 20558615]

約数ペア:

[(1, 20558615), (5, 4111723), (7, 2936945), (11, 1868965), (35, 587389), (55, 373793), (67, 306845), (77, 266995), (335, 61369), (385, 53399), (469, 43835), (737, 27895), (797, 25795), (2345, 8767), (3685, 5579), (3985, 5159)]