20899544

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{383}}^1$

素因数の和:767

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 20572456

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 359, 383, 718, 766, 1436, 1532, 2872, 3064, 6821, 7277, 13642, 14554, 27284, 29108, 54568, 58216, 137497, 274994, 549988, 1099976, 2612443, 5224886, 10449772, 20899544]

約数ペア:

[(1, 20899544), (2, 10449772), (4, 5224886), (8, 2612443), (19, 1099976), (38, 549988), (76, 274994), (152, 137497), (359, 58216), (383, 54568), (718, 29108), (766, 27284), (1436, 14554), (1532, 13642), (2872, 7277), (3064, 6821)]