20891229142

素因数分解:

$2^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2341}}^1\times {\mathrm{5641}}^1$

素因数の和:8104

約数の個数: 32

約数和(自身を含む): 36152311104

約数和(自身を除く): 15261081962

約数列:

[1, 2, 7, 14, 113, 226, 791, 1582, 2341, 4682, 5641, 11282, 16387, 32774, 39487, 78974, 264533, 529066, 637433, 1274866, 1851731, 3703462, 4462031, 8924062, 13205581, 26411162, 92439067, 184878134, 1492230653, 2984461306, 10445614571, 20891229142]

約数ペア:

[(1, 20891229142), (2, 10445614571), (7, 2984461306), (14, 1492230653), (113, 184878134), (226, 92439067), (791, 26411162), (1582, 13205581), (2341, 8924062), (4682, 4462031), (5641, 3703462), (11282, 1851731), (16387, 1274866), (32774, 637433), (39487, 529066), (78974, 264533)]