20978886

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 42922368

約数和(自身を除く): 21943482

約数列:

[1, 2, 3, 6, 73, 146, 211, 219, 227, 422, 438, 454, 633, 681, 1266, 1362, 15403, 16571, 30806, 33142, 46209, 47897, 49713, 92418, 95794, 99426, 143691, 287382, 3496481, 6992962, 10489443, 20978886]

約数ペア:

[(1, 20978886), (2, 10489443), (3, 6992962), (6, 3496481), (73, 287382), (146, 143691), (211, 99426), (219, 95794), (227, 92418), (422, 49713), (438, 47897), (454, 46209), (633, 33142), (681, 30806), (1266, 16571), (1362, 15403)]