21959498

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 15296182

約数列:

[1, 2, 11, 22, 43, 86, 139, 167, 278, 334, 473, 946, 1529, 1837, 3058, 3674, 5977, 7181, 11954, 14362, 23213, 46426, 65747, 78991, 131494, 157982, 255343, 510686, 998159, 1996318, 10979749, 21959498]

約数ペア:

[(1, 21959498), (2, 10979749), (11, 1996318), (22, 998159), (43, 510686), (86, 255343), (139, 157982), (167, 131494), (278, 78991), (334, 65747), (473, 46426), (946, 23213), (1529, 14362), (1837, 11954), (3058, 7181), (3674, 5977)]