20753818

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:262

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 12953702

約数列:

[1, 2, 31, 37, 62, 74, 83, 109, 166, 218, 1147, 2294, 2573, 3071, 3379, 4033, 5146, 6142, 6758, 8066, 9047, 18094, 95201, 125023, 190402, 250046, 280457, 334739, 560914, 669478, 10376909, 20753818]

約数ペア:

[(1, 20753818), (2, 10376909), (31, 669478), (37, 560914), (62, 334739), (74, 280457), (83, 250046), (109, 190402), (166, 125023), (218, 95201), (1147, 18094), (2294, 9047), (2573, 8066), (3071, 6758), (3379, 6142), (4033, 5146)]